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The Value of Knowledge
Value of knowledge has always been a central topic within epistemology. An important question to address, which can be traced right back to Plato's Meno, is: what is it about knowledge (if anything) that makes it more valuable than mere true belief? Interest in this topic has re-emerged in recent years, in response to a rediscovery of the Meno problem regarding the value of knowledge (e.g., Kvanvig 2003) and in response to a concern that contemporary accounts of knowledge are unable to explain the (putative) distinctive value of knowledge (e.g., Williamson 2000). Moreover, recent discussions of the value of knowledge have begun to explore the possibility that it is not knowledge which is the distinctively valuable epistemic standing, but rather a different epistemic standing altogether, such as understanding.
- 1. The Meno Problem
- 2. Two Other Value Problems for Knowledge
- 3. Reliabilism and the Meno Problem
- 4. Virtue Epistemology and the Value Problem
- 5. Understanding and Epistemic Value
- 6. Other Accounts of the Value of Knowledge
- 7. Weak and Strong Conceptions of Knowledge
- 8. Knowledge, Factivity and Reasons
- 9. The Value of True Belief
- Academic Tools
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Much of the debate regarding epistemic value has focussed on the value of knowledge. This is unsurprising, since the epistemological focus, both in the contemporary literature and historically, has almost exclusively been on this notion. If knowledge is not of special value, however, then this focus is somewhat mysterious. We will call the general question of why knowledge is valuable the value problem.
The question why knowledge is distinctively valuable has an important historical precedent in Plato's Meno in which Socrates raises the question of why knowledge is more valuable than mere true belief. Initially, we might appeal to the fact that knowledge appears to be of more practical use than true belief in order to mark this difference in value, but, as Socrates notes, this claim is far from obvious on closer inspection. After all, a true belief about the correct way to Larissa is surely of just as much practical use as knowledge of the way to Larissa—both will get us to our destination. Given that we clearly do value knowledge more than mere true belief, the fact that there is no obvious explanation of why this should be so creates a problem. We will call the issue of why knowledge is more valuable than mere true belief, the Meno problem.
Plato's own solution to this problem was to argue that the property distinctively possessed by knowledge is that of being ‘tied-down’ to the truth, like the mythical tethered statues of Daedalus which were so life-like that they were tied to the ground to ensure that they did not run away. In contrast, mere true belief, argues Plato, is apt to run away and be lost. Put more prosaically, the point being made here is that knowledge, unlike mere true belief, gives one a confidence that is not easily lost, and it is this property that accounts for the distinctive value of knowledge over mere true belief.
For example, if one knows the way to Larissa, rather than merely truly believes that such-and-such is the correct way to go, then one is less likely to be perturbed by the fact that the road, initially at least, seems to be going in the wrong direction. Mere true belief at this point may be lost, since one might lose all confidence that this is the right way to go. In contrast, if one knows that this is the right way to go, then one will be more sanguine in the light of this development, and thus will in all likelihood press on regardless (and thereby have one's confidence rewarded by getting where one needs to go).
Like most commentators, then, Plato responds to the Meno problem by trying to find a way to meet it head-on—i.e., by trying to find a way to show that knowledge is of more value than mere true belief after all. He thus aims for a non-revisionary response to the problem, and we shall consider others below. Alternatively, of course, one could argue that the way to deal with this problem is simply to reject the intuition in play and argue that knowledge isn't of more value than mere true belief after all. Ideally, one would supplement such an account with an explanation of why knowledge might seem to be more valuable than mere true belief even though in fact it isn't. This would be a revisionary response to the problem. While few have found revisionary responses to the Meno problem attractive, analogous revisionary responses to other comparable problems have been relatively common, as we will see below.
While much of the focus of the discussion of the value of knowledge has tended to cluster around the Meno problem, there are in fact two further related problems in this regard. The first is what we might call—following Duncan Pritchard (2007: §2)—the secondary value problem (with the Meno problem as the primary value problem for knowledge, and with a further tertiary value problem which will be distinguished below). Whereas the Meno problem concerns the question of why knowledge is more valuable than mere true belief, the secondary value problem concerns the issue of why knowledge is more valuable than any proper subset of its parts. That is, why do we specifically desire knowledge rather than any epistemic standing that falls short of knowing (including, but not restricted to, mere true belief)? The importance of this distinction between the two value problems can be brought out by considering a possible response to the primary value problem which is not thereby a response to the secondary value problem.
Suppose, for example, that knowledge is justified true belief plus some additional component that deals with Gettier-style cases. Suppose further, however, that justification adds value to a mere true belief. If this last point is right, then one might reasonably argue that the fact that knowledge entails justification offers a way of dealing with the primary value problem, since there would now be a property of knowledge which mere true belief lacks and which affords greater value to knowledge over mere true belief. It would not follow, however, that we would thereby have a response to the secondary value problem. This is because justified true belief is a proper subset of knowledge on our present suppositions, and thus the greater value of knowledge over mere true belief would not translate into a greater value of knowledge over any proper subset of its parts, including justified true belief.
If one's account of the value of knowledge ended at this point, one would thus be offering a non-revisionary response to the Meno problem while simultaneously offering a revisionary response to the secondary value problem. Indeed, this is, in effect, the line taken by Mark Kaplan (1985), who agues that the moral of the post-Gettier literature is that what is really of epistemic value is justified true belief, and not knowledge (knowledge being justified true belief plus an additional component to rule-out Gettier-style cases). Kaplan's point is that it is of no practical consequence to us whether we have Gettier-proof justified true belief—i.e., knowledge—rather than just justified true belief, and hence there is no specific reason to value knowledge over justified true belief. Moreover, Kaplan can explain why we might ordinarily have the intuition that knowledge is of special epistemic value by noting that knowledge could very easily be confused with mere justified true belief. For criticism of Kaplan's view in this regard, see Conee (1988).
It seems then that if one wishes to account for the distinctive value of knowledge, one must resolve both the Meno and the secondary value problem. Indeed, there may even be a third value problem for knowledge in play here. After all, one could respond to the secondary value problem by arguing that knowledge is more valuable as a matter of degree than that which falls short of knowledge. It is unclear, however, whether this way of thinking about the value of knowledge can do justice to the idea that knowledge is distinctively valuable. That is, the picture that one is left with is one on which knowledge simply marks a point on a continuum of epistemic value, but on this picture it is far from clear why the focus of epistemological theorizing has been this point on the continuum rather than some other point (a point just before the one that knowledge marks perhaps, or one just after). Thus, one might argue that what is required is an account of why knowledge is more valuable than that which falls short of knowledge not merely as a matter of degree but of kind (this is known as the tertiary value problem). In effect, the challenge posed by the tertiary value problem is to explain what special kind of value enters the picture once one gets to the point on the continuum that knowledge marks.
One further point is in order before we continue. It ought to be clear that what we are seeking when we look for a response to one of these three value problems is not an account of why knowledge is always more valuable than the corresponding epistemic commodity (e.g., mere true belief). To take the Meno problem as an illustration on this score, no-one would surely want to hold that knowledge is always of more (overall) value than mere true belief, since there are bound to be cases in which it would better for you, all things considered, to merely truly believe p than to know p (as when knowing p would kill you, say, but merely truly believing p would win you the lottery instead). However, while it is clear that the requirement laid down on successful resolutions of the various value problems for knowledge is weaker than the demand that knowledge is always more valuable than the corresponding epistemic commodity, it isn't at all clear how best to understand this weaker demand. Note what goes here for the value problems regarding knowledge applies just as equally when it comes to analogous problems that face other epistemic standings.
The first contemporary wave of work on the value problem largely concerned whether this problem raised a distinctive difficulty for reliabilist accounts of knowledge—i.e., those views which essentially define knowledge in terms of true belief that arises out of reliable belief-forming processes (usually with a further codicil to deal with the problem posed by Gettier-style cases). In particular, the claim was that reliabilism was unable even to offer an answer to the primary value problem (at least assuming that it is the reliability condition, and not the anti-Gettier condition, which is accounting for the greater value of knowledge over mere true belief).
A fairly clear statement of what is at issue here is given in a number of places by Linda Zagzebski (e.g., 2003; cf. DePaul 1993; Zagzebski 1996; Jones 1997; Swinburne 1999; 2000; Riggs 2002; Kvanvig 2003; Sosa 2007: ch. 4). To begin with, Zagzebski argues that the reliability of the process by which something is produced does not automatically add value to that thing, and thus that it cannot be assumed that the reliability of the process by which a true belief is produced will add value to that true belief. In defence of this claim, she offers the analogy of a cup of coffee. She claims that a good cup of coffee which is produced by a reliable coffee machine—i.e., one that regularly produces good cups of coffee—is of no more value than an equally good cup of coffee that is produced by an unreliable coffee machine.
Furthermore, Zagzebski claims that true belief is in the relevant respects like coffee: a true belief formed via a reliable belief-forming process is no more valuable than a true belief formed via an unreliable belief-forming process. In both cases, the value of the reliability of the process accrues in virtue of its tendency to produce a certain valuable effect (good coffee/true belief), but this means that where the effect has been produced—where one has a good cup of coffee or a true belief—then the value of the product is no greater for having been produced in a reliable way.
Elsewhere in the literature, this problem has been called the “swamping problem”, on account of how the value of true belief ‘swamps’ the value of the true belief being produced in a reliable (i.e., truth-conducive) way. So expressed, the moral of the problem seems to be that where reliabilists go awry is by treating the value of the process as being solely captured by the reliability of the process—i.e., its tendency to produce the desired effect. Since the value of the effect swamps the value of the reliability of the process by which the effect was achieved, this means that reliabilism has no resources available to it to explain why knowledge is more valuable than true belief.
It's actually not clear that this is a problem that is specific to reliabilism. That is, it seems that if this is a bona fide problem then it will affect any account of the value of knowledge which has the same relevant features as reliabilism—i.e., which regards the greater value of knowledge over true belief as instrumental value, where the instrumental value in question is relative to the valuable good of true belief. Presumably, there could be non-reliabilist views that had these features.
Even granting the main elements of the swamping argument, there are moves that the reliabilist can make in response (see, e.g., Goldman & Olsson 2009). For example, it is surely open to the reliabilist to argue that the greater instrumental value of reliable true belief over mere true belief does not need to be understood purely in terms of instrumental value relative to the good of true belief. There could, for instance, be all sorts of practical benefits of having a reliable true belief which generate instrumental value. Indeed, it is worth noting that line of response to the Meno problem sketched by Plato which we noted above seems to specifically appeal to the greater practical instrumental value of knowledge over mere true belief.
Moreover, there is reason to think that this objection will only at best have an impact on process reliabilist proposals—i.e., those views which treat all reliable belief-forming processes as conferring a positive epistemic standing on the beliefs so formed. For example, the kind of agent reliabilist account offered by John Greco (e.g., 1999; 2000) might be thought to be untouched by this sort of argument. This is because, according to agent reliabilism, it is not any sort of reliable process which confers positive epistemic status to belief, but only those processes that are stable features of what Greco calls the agent's “cognitive character”. The main motivation for this restriction on reliable processes is that it excludes certain kinds of reliable processes—what Greco calls “strange and fleeting processes”—which notoriously cause problems for the view (such as processes where the reliability is due to some quirk in the subject's environment, rather than because of any cognitive trait possessed by the agent herself). Plausibly, however, one might argue that the reliable traits that make up an agent's cognitive character have some value independently of the instrumental value they possess in virtue of being reliable—i.e., that they have some final or intrinsic value. If this is right, then this opens up the possibility that agent-reliabilists can evade the value problem that Zagzebski identifies for pure reliabilists. (Note, however, that Greco himself does not respond to the value problem in this way. His proposal will be considered in this regard in due course).
Zagzebski's diagnosis of what is motivating this problem for reliabilism seems, however, explicitly to exclude such a counter-response. She argues that what gives rise to this difficulty is the fact that the reliabilist has signed up to a “machine-product model of belief”—see especially, Zagzebski (2003)—where the product is external to the cause. It is not clear what exactly Zagzebski means by this point, but she thinks it shows that even where the reliable process is independently valuable—i.e., independently of its being reliable—it still doesn't follow that the value of the cause will transfer to add value to the effect. Zagzebski again offers the ‘coffee’ analogy to illustrate this: even if a reliable coffee machine were independently valuable, it would not thereby confer additional value on a good cup of coffee.
Perhaps the best way to understand what Zagzebski has in mind here is to consider what she thinks is required in order to resolve this problem. She argues that what is needed is an ‘internal’ connection between product and cause, such as the kind of internal connection that exists between an act and its motive which is highlighted by how we explicitly evaluate actions in terms of the motives that led to them. On this picture, then, we are not to understand knowledge as a state consisting of a known belief, but rather as a state which consists of both the true belief and the source from which that true belief was acquired. In short, then, the problem with the machine-product model of belief that Zagzebski claims to identify is that it leads us to evaluate the state of the knowledge independently of the means by which the knowledge was acquired. If, in contrast, we have a conception of knowledge that incorporates into the very state of knowledge the way that the knowledge was acquired, then, Zagzebski argues, we can avoid this problem.
Zagzebski's contention is that once one effects this transition away from the machine-product model of belief, one can allow that the independent value of the reliable process can ensure that knowledge, by being produced in this way, is more valuable than mere true belief. In particular, if the process by which one gained the true belief is an epistemic virtue—a character trait which Zagzebski thinks is both reliable and intrinsically valuable—then this can ensure that the value of the knowing state in this case is more valuable than any corresponding state which simply consisted of a true belief.
Other commentators in the virtue epistemology camp, broadly conceived, have put forward similar suggestions. For example, Wayne Riggs (2002) and Greco (e.g., 2003) have argued for a ‘credit’ version of virtue epistemology, according to which the agent, in virtue of bringing about the positively valuable outcome of a true belief, is due credit as a result. Rather than treating the extra value of knowledge over true belief as deriving simply from the agent's attainment of the target true belief, however, Riggs and Greco instead argue that we should regard the agent's knowing as the state the agent is in when she is responsible for her true belief. Only in so doing, they claim, can we answer the value problem.
Interestingly, however, other virtue epistemologists, most notably Ernest Sosa (2003), have also advocated a ‘credit’ view of this sort, yet seem to stay within the machine-product picture of belief that Zagzebski thinks is so problematic. That is, rather than analyse the state of knowing as consisting of both the true belief and its source, they regard the state of knowing as distinct from the process, yet treat the fact that the process is intrinsically valuable as conferring additional value on any true belief so produced. With Sosa's view in mind, it is interesting to ask just why we need to analyse knowledge in the way that Zagzebski and others suggest in order to get around the value problem.
The most direct way to approach this question is by considering whether it is really true that a valuable cause cannot confer value on its effect where cause and effect are kept separate in the way that Zagzebski claims is problematic in the case of knowledge. One commentator who has objected to Zagzebski's argument by querying this claim on her part is Berit Brogaard (2007; cf. Percival 2003; Pritchard 2007: §2), who claims that a valuable cause can indeed confer value on its effect in the relevant cases. Brogaard claims that virtue epistemologists like Zagzebski and Riggs endorse this claim because they adhere to what she call a “Moorean” conception of value, on which if two things have the same intrinsic properties, then they are equally valuable. Accordingly, if true belief and knowledge have the same intrinsic properties (which is what would be the case on the view of knowledge that they reject), it follows that they must have the same value. Hence, it is crucial to understand knowledge as having distinct intrinsic properties from true belief before one can hope to resolve the value problem.
If one holds that there is only intrinsic and instrumental value, then this conception of value is compelling, since objects with the same intrinsic properties trivially have the same amount of intrinsic value, and they also plausibly have the same amount of instrumental value as well (at least in the same sort of environment). As Brogaard points out, however, the Moorean conception of value is problematic because—as Wlodek Rabinowicz & Toni Roennow-Rasmussen (1999; 2003) have pointed out—there seem to be objects which we value for their own sake but whose value derives from their being extrinsically related to something else that we value. That is, such objects are finally—i.e., non-instrumentally—valuable without thereby being intrinsically valuable. For criticism of this account of final value, see Bradley (2002).
The standard example in this regard is Princess Diana's dress. This would be regarded as more valuable than an exact replica simply because it belonged to Diana, which is clearly an extrinsic property of the object. Even though the extra value that accrues to the object is due to its extrinsic properties, however, it is still the case that this dress is (properly) valued for its own sake, and thus valued non-instrumentally.
Given that value of this sort is possible, then it follows that it could well be the case that we value one true belief over another because of its extrinsic features—i.e., that the one true belief, but not the other, was produced by a reliable cognitive trait that is independently valuable. For example, it could be that we value forming a true belief via a reliable cognitive trait more than a mere true belief because the former belief is produced in such a way that it is of credit to us that we believe the truth. There is thus a crucial lacuna in Zagzebski's argument.
A different response to the challenge that Zagzebski raises for reliabilism is given by Michael Brady (2006). In defence of reliabilism, Brady appeals to the idea that to be valuable is to be a fitting or appropriate object of positive evaluative attitudes, such as admiration or love (e.g., Brentano 1969; Chisholm 1986; Wiggins 1987; Gibbard 1990; Scanlon 1998). That one object is more valuable than another is thus to be understood, on this view, in terms of the fact that that object is more worthy of positive evaluation. Thus, the value problem for reliabilism on this conception of value comes down to the question why knowledge is more worthy of positive evaluation on this view than mere true belief. Brady's contention is that, at least within this axiological framework, it is possible for the reliabilist to offer a compelling story about why reliable true belief—and thus knowledge—is more valuable than mere true belief.
Central to Brady's argument is his claim that there are many ways one can positively evaluate something, and thus many different ways something can be valuable. Moreover, Brady argues that we can distinguish active from passive evaluative attributes, where the former class of attitudes involve pursuit of the good in question. For example, one might actively value the truth, where this involves, for instance, a striving to discover the truth. In contrast, one might at other times merely passively value the truth, such as simply respecting or contemplating it.
With this point in mind, Brady's central thesis is that on the reliabilist account knowledge is more valuable than true belief because certain active positive evaluative attitudes are fitting only with regard to the former (i.e., reliable true belief). In particular, given its intrinsic features, reliable true belief is worthy of active love, whereas an active love of unreliable (i.e., accidental) true belief because of its intrinsic features would be entirely inappropriate because there is nothing that we can do to attain unreliable true belief that wouldn't conflict with love of truth.
This is an intriguing proposal, and certainly opens up a possible avenue of defence against Zagzebski's attack on reliabilism since she doesn't even consider the possibility of applying this axiological framework here. One problem that it faces, however, is that it is unclear whether we can make sense of the distinction Brady draws between active and passive evaluative attitudes, at least in the epistemic sphere. When Brady talks of passive evaluative attitudes towards the truth he gives examples like contemplating, accepting, embracing, affirming, and respecting. Some of these attitudes are not clearly positive evaluative attitudes, however. Moreover, some of them are not obviously passive either. For example, is to contemplate the truth really to evaluate it positively, rather than simply to consider it? Furthermore, in accepting, affirming or embracing the truth, isn't one actively positively evaluating the truth? Wouldn't such evaluative attitudes manifest themselves in the kind of practical action that Brady thinks is the mark of active evaluative attitudes? More needs to be said about this distinction before it can do the philosophical work that Brady has in mind.
So far this discussion has taken it as given that, whatever problems reliabilism faces in this regard, there are epistemological theories available—some form of virtue epistemology, for example—that can deal with them. But not everyone in the contemporary debate accepts this. Perhaps the best known sceptic in this respect is Jonathan Kvanvig (2003), who in effect argues that while virtue epistemology (along with a form of epistemic internalism) can resolve the primary value problem (i.e., the problem of explaining why knowledge is more valuable than mere true belief), the real challenge that we need to respond to is that set by the secondary value problem (i.e., the problem of explaining why knowledge is more valuable than that which falls short of knowledge); and Kvanvig says that there is no solution available to that. That is, Kvanvig argues that there is an epistemic standing—in essence, justified true belief—which falls short of knowledge but which is no less valuable than knowledge. He concludes that the focus of epistemology should not be on knowledge at all, but rather on understanding, an epistemic standing that Kvanvig maintains is clearly of more value than knowledge and those epistemic standings that fall short of knowledge, such as justified true belief.
What Kvanvig says about understanding will be considered below. First though, let us consider the specific challenge that he poses for virtue epistemology. In essence, Kvanvig's argument rests on the assumption that it is essential to any virtue-theoretic account of knowledge—and any internalist account of knowledge as well, for that matter (i.e., an account that makes a subjective justification condition necessary for knowledge possession)—that it also includes an anti-Gettier condition. If this is right, then it follows that even if virtue epistemology has an answer to the primary value problem—and Kvanvig concedes that it does—it will not thereby have an answer to the secondary value problem since knowledge is not simply virtuous true belief. Moreover, Kvanvig argues that once we recognise what a gerrymandered notion a non-Gettierized account of knowledge is, it becomes apparent that there is nothing valuable about the anti-Gettier condition on knowledge that needs to be imposed. But if that is right, then it follows by even virtue epistemic lights that knowledge—i.e., non-Gettierized virtuous true believing—is no more valuable than one of its proper sub-sets—i.e., mere virtuous true believing.
There are at least two aspects of Kvanvig's argument that are problematic. To begin with, it isn't at all clear why the anti-Gettier condition on knowledge fails to add value, something that seems to be being assumed here. More generally, Kvanvig seems to be implicitly supposing that if an analysis of knowledge is ugly and gerrymandered then that is itself reason to doubt that knowledge is particularly valuable, at least assuming that there are epistemic standings that fall short of knowledge which can be given an elegant analysis. While a similar assumption about the relationship between the elegance (or otherwise) of the analysis of knowledge and the value of the analysandum is commonplace in the contemporary epistemological literature—see, for example, Zagzebski (1999) and Williamson (2000: chapter 1)—this assumption is contentious. For critical discussion of this assumption, see DePaul (2009).
In any case, a more serious problem is that Kvanvig seems not to have noticed that many virtue epistemologists—among them Sosa (1988; 1991; 2007), Zagzebski (e.g., 1996; 1999) and Greco (2002; 2007; 2008; 2009)—think that their view can deal with Gettier problems without needing to add an additional anti-Gettier condition on knowledge. The way this is achieved is by making the move noted above of treating knowledge as a state that includes both the truly believing and the virtuous source by which that true belief was acquired. Greco (2009), for example, makes a distinction between (i) a belief's being true and virtuously formed, and (ii) a belief's being true because virtuously formed. On the virtue-theoretic account he proposes, knowledge is to be analysed as the latter, and it is only when so analysed, claims Greco, that virtue epistemology can respond to the Gettier problem. Kvanvig, however, resolutely reads virtue epistemologists as uniformly offering an account of knowledge cast along the lines of (i).
Moreover, building on earlier work by Sosa and Zagzebski on this score, Greco (e.g., 2009) argues that it is only if the virtue epistemological proposal is read in this way that it is able to answer the value problem. More specifically (though he does not put the point in these terms), the answer to the value problem offered by virtue epistemology on this construal is able to respond to not only the secondary value problem but also the tertiary value problem (i.e., the problem of explaining why knowledge is more valuable, in kind and not merely in degree, than that which falls short of knowledge). This is because knowledge, on this view, is simply the cognitive aspect of a more general notion, that of achievement. That is, Greco argues that achievements are successes that are because of ability, and thus, given that on his view knowledge is cognitive success (i.e., true belief) that is because of cognitive ability, knowledge is cognitive achievement. The import of this claim to our current discussion is that achievements are, plausibly at least, of final (i.e., non-instrumental) value. (Greco himself describes the kind of value in play here as intrinsic value—i.e., value that is attributable to the intrinsic properties of the item—but it is clear from how he sets out his view that it is in fact specifically final value that he has in mind). If this is right, then cognitive achievements—i.e., knowledge—will also have final value, and thus one is well on one's way to answering the tertiary value problem (and thus the secondary value problem also).
There are thus two key theses to this account of the value of knowledge—that achievements are finally valuable, and that knowledge is a form of achievement—both of which could be called into question. As regards the first thesis, one might object that some successes that are because of ability—i.e., achievements, on this view—are too trivial or easy or wicked to count as finally valuable. This line of objection is far from decisive. After all, it is open to Greco to argue that the claim is only that all achievements qua achievements are finally valuable, not that the overall value of every achievements is particularly high. It is thus consistent with the proposal that some achievements have a very low—perhaps even negative, if that is possible—value in virtue of their other properties (e.g., their triviality). Indeed, a second option in this regard is to allow that not all achievements enjoy final value whilst nevertheless maintaining that it is in the nature of achievements to have such value (e.g., much in the way that one might argue that it is in the nature of pleasure to be a good, even though some pleasures are bad). Since, as noted above, all that is required to meet the (tertiary) value problem is to show that knowledge is generally distinctively valuable, this claim would almost certainly suffice for Greco's purposes.
In any case, it is the second claim that Greco makes—i.e., that knowledge is to be understood as a kind of achievement—that is the most controversial. There are two key problems with this claim. The first is that there sometimes seems to be more to knowledge than a cognitive achievement; the second is that there sometimes seems to be less to knowledge than a cognitive achievement.
As regards the first claim, notice that achievements seem to be compatible with at least one kind of luck. Suppose that an archer hits a target by employing her relevant archery abilities, but that the success is ‘gettierized’ by luck intervening between the archer's firing of the arrow and the hitting of the target. For example, suppose that a freak gust of wind blows the arrow off-course, but then a second freak gust of wind happens to blow it back on course again. The archer's success is thus lucky in the sense that it could very easily have been a failure. When it comes to ‘intervening’ luck of this sort, Greco's account of achievements is able to offer a good explanation of why the success in question does not constitute an achievement. After all, we would not say that the success was because of the archer's ability in this case.
Notice, however, that not all forms of luck are of this intervening sort. Consider the following case offered by Pritchard (2010: ch. 2). Suppose that nothing intervenes between the archer's firing of the arrow and the hitting of the target. However, the success is still lucky in the relevant sense because, unbeknownst to the archer, she just happened to fire at the only target on the range that did not contain a forcefield which would have repelled the arrow. Is the archer's success still an achievement? Intuition would seem to dictate that it is; it certainly seems to be a success that is because of ability, even despite the luckiness of that success. Achievements, then, are, it seems, compatible with luck of this ‘environmental’ form even though they are not compatible with luck of the standard ‘intervening’ form.
The significance of this conclusion for our purposes is that knowledge is incompatible with both forms of luck. In order to see this, one only needs to note that an epistemological analogue of the archer case just given is the famous barn façade example. In this example, we have an agent who forms a true belief that there is a barn in front of him. Moreover, his belief is not subject to the kind of ‘intervening’ luck just noted and which is a standard feature of Gettier-style cases. It is not as if, for example, he is looking at what appears to be a barn but which is not in fact a barn, but that his belief is true nonetheless because there is a barn behind the barn shaped object that he is looking at. Nevertheless, his belief is subject to environmental luck in that he is, unbeknownst to him, in barn façade county in which every other barn-shaped object is a barn façade. Thus, his belief is only luckily true in that he could very easily have been mistaken in this respect. Given that this example is structurally equivalent to the ‘archer’ case just given, it seems that just as we treat the archer as exhibiting an achievement in that case, so we should treat this agent as exhibiting a cognitive achievement here. The problem, however, is that it is almost universally accepted that the agent in the barn façade case lacks knowledge. Knowledge, it seems, is incompatible with environmental luck in a way that achievements, and thus cognitive achievements, are not.
Greco (2007; 2008; 2009) has made a number of salient points regarding this case. For example, he has argued for a conception of what counts as a cognitive ability according to which the agent in the barn façade case would not count as exhibiting the relevant cognitive ability (see Pritchard 2010: ch. 2 for a critical discussion of this claim). Moreover, he has argued that, in any case, there are grounds to think that there may be something special about the concept of knowledge which would mean that knowledge might be more resistant to certain kinds of luck than achievements more generally.
Even if these claims can be made to stick, however, there is a second problem on the horizon, which is that it seems that there are some cases of knowledge which are not cases of cognitive achievement. One such case is offered by Jennifer Lackey (2007), albeit to illustrate a slightly different point. Lackey asks us to imagine someone arriving at the train station in Chicago who, wishing to obtain directions to the Sears Tower, approaches the first adult passer-by she sees. Suppose the person she asks is indeed knowledgeable about the area and gives her the directions that she requires. Intuitively, any true belief that the agent forms on this basis would ordinarily be counted as knowledge. Indeed, if one could not gain testimonial knowledge in this way, then it seems that we know an awful lot less than we think we know. What is significant about this case, however, is that we would not intuitively regard the truth of the agent's belief as being because of her cognitive abilities. Indeed, if anything, we would think that her cognitive success was down to her informant's cognitive abilities. Thus, it seems that there are cases of knowledge which are not also cases of cognitive achievement.
It is worth being clear about the nature of this objection. Lackey takes cases like this to demonstrate that one can possess knowledge without it being of any credit to one that one's belief is true. But this conclusion is surely too strong, in that the agent is employing her cognitive abilities to some degree, and so surely deserves some credit for the truth of the belief formed (she would not have asked just anyone, for example, nor would she have simply accepted just any answer given by her informant). The point is thus rather that whatever credit the agent is due for having a true belief, it is not the kind of credit that reflects a bona fide cognitive achievement because of how this cognitive success involves ‘piggy-backing’ on the cognitive efforts of others.
Greco could respond to this sort of case by either claiming that, despite first appearances, the agent concerned does not have knowledge, or else claiming that she does have knowledge but that, on closer inspection, this is a genuine cognitive achievement after all. Neither alternative looks particularly appealing, though no doubt a strong case can be constructed in support of at least one of these responses. The fundamental problem facing the view, however, is that once one combines this problem with the one mentioned earlier—i.e., the problem that some cognitive achievements don't seem to be cases of knowledge—the view starts to look far from compelling. Indeed, Pritchard (2010: ch. 3) argues that the moral that should be drawn is that there is no adequate response to the tertiary value problem available after all (the virtue-theoretic account being the most promising line on this score) and that a revisionary response to this problem should therefore be favoured. In particular, the claim is that given the close connection between knowledge and cognitive achievements, and the general final value of achievements, it is not surprising that knowledge is thought to be distinctively—i.e., finally—valuable even though closer reflection reveals that it is actually a distinct epistemic standing, that of cognitive achievement, that is distinctively valuable.
As noted above, the main conclusion that Kvanvig (2003) draws from his reflections on the value problem is that the real focus in epistemology should not be on knowledge at all but on understanding, an epistemic standing that Kvanvig does think is especially valuable but which, he argues, is distinct from knowing—i.e., one can have knowledge without the corresponding understanding, and one can have understanding without the corresponding knowledge. (Pritchard (e.g. 2010: chs 1–4) agrees, though his reasons for taking this line are somewhat different to Kvanvig's). It is perhaps this aspect of Kvanvig's book that has prompted the most critical response, so it is worth briefly dwelling on the debate regarding his claims in this respect in a little more detail here.
To begin with, one needs to get clear what Kvanvig has in mind when he talks of understanding, since many commentators have found the conception of understanding that he targets problematic. The two usages of the term ‘understanding’ in ordinary language that Kvanvig focuses on—and which he regards as being especially important to epistemology—are “when understanding is claimed for some object, such as some subject matter, and when it involves understanding that something is the case.” (Kvanvig 2003: 189) The first kind of understanding he calls “objectual understanding”, the second kind “propositional understanding”. In both cases, understanding requires that one successfully grasp how one's beliefs in the relevant propositions cohere with other propositions one believes (e.g., Kvanvig 2003: 192, 197–8). This requirement entails that understanding is directly factive in the case of propositional understanding and indirectly factive in the case of objectual understanding—i.e., the agent needs to have at least mostly true beliefs about the target subject matter in order to be truly said to have objectual understanding of that subject matter.
Given that understanding—propositional understanding at any rate—is factive, Kvanvig's argument for why understanding is distinct from knowledge does not relate to this condition (as we will see in a moment, it is standard to argue that understanding is distinct from knowledge precisely because only understanding is non-factive). Instead, Kvanvig notes two key differences between understanding and knowledge: that understanding, unlike knowledge, admits of degrees, and that understanding, unlike knowledge, is compatible with epistemic luck. Most commentators, however, have tended to focus not on these two theses concerning the different properties of knowledge and understanding, but rather on Kvanvig's claim that understanding is (at least indirectly) factive.
For example, Elgin (2009; cf. Elgin 1996; 2004) and Riggs (2009) both argue that it is possible for an agent to have understanding and yet lack true beliefs in the relevant propositions. For example, Elgin (2009) that it is essential to treat scientific understanding as non-factive. She cites a number of cases in which science has progressed from one theory to a better theory where, we would say, understanding has increased in the process even though the theories are, strictly speaking at least, false. A different kind of case that Elgin offers concerns scientific idealisations, such as the ideal gas law. Scientists know full well that no actual gas behaves in this way, yet the introduction of this useful fiction clearly improved our understanding of the behaviour of actual gasses. For a defence of Kvanvig's view in the light of these charges, see Kvanvig (2009a; 2009b).
A very different sort of challenge to Kvanvig's treatment of understanding comes from Brogaard (2005, Other Internet Resources). She argues that Kvanvig's claim that understanding is of greater value than knowledge is only achieved because he fails to give a rich enough account of knowledge. More specifically, Brogaard claims that we can distinguish between objectual and propositional knowledge just as we can distinguish between objectual and propositional understanding. Propositional understanding, argues Brogaard, no more requires coherence in one's beliefs than propositional knowledge, and so the difference in value between the two cannot lie here. Moreover, while Brogaard grants that objectual understanding does incorporate a coherence requirement, this again fails to mark a value-relevant distinction between knowledge and understanding because the relevant counterpart—objectual knowledge (i.e., knowledge of a subject matter)—also incorporates a coherence requirement. So provided that we are consistent in our comparisons of objectual and propositional understanding on the one hand, and objectual and propositional knowledge on the other, Kvanvig fails to make a sound case for thinking that understanding is of greater value than knowledge.
Finally, a further challenge to Kvanvig's treatment of knowledge and understanding focusses on his claims regarding epistemic luck. Stephen Grimm (2006), for example, argues that understanding is just as incompatible with epistemic luck as knowledge is. In contrast, Pritchard (2010: ch. 4) argues that both Grimm and Kvanvig are wrong on this score, in that while understanding is compatible with a certain kind of epistemic luck—‘environmental’ luck of the sort described earlier—that knowledge is incompatible with, it is incompatible with a second kind of epistemic luck—‘intervening’ luck—that knowledge is incompatible with. His diagnosis for why this might be the case is that understanding, unlike knowledge, is a form of cognitive achievement, for recall we saw him arguing earlier that cognitive achievements, unlike knowledge, are compatible with environmental epistemic luck as well. If this is right, then it enables Pritchard to offer a more explicit account of why understanding is distinctively valuable in the way that Kvanvig alleges. After all, if all achievements are finally valuable, and understanding is itself a type of cognitive achievement, then understanding will be finally valuable too, unlike knowledge on this view.
John Hawthorne (2004) has recently argued that knowledge is valuable because of the role it plays in practical reasoning. More specifically, Hawthorne (2004: 30) argues for the principle that one should use a proposition p as a premise in one's practical reasoning only if one knows p. Hawthorne primarily motivates this line of argument by appeal to the lottery case. This concerns an agent's true belief that she holds the losing ticket for a fair lottery with long odds and a large cash prize, a belief that is based solely on the fact that she has reflected on the odds involved. Intuitively, we would say that such an agent lacks knowledge of what she believes, even though her belief is true and even though her justification for what she believes—assessed in terms of the likelihood, given this justification, of her being right—is unusually strong. Moreover, were this agent to use this belief as a premise in her practical reasoning, and so infer that she should throw the ticket away without checking the lottery results in the paper for example, then we would regard her reasoning as problematic.
Lottery cases therefore seem to show that justified true belief, no matter how strong the degree of justification, is not enough for acceptable practical reasoning—instead, knowledge is required. Moreover, notice that we can alter the example slightly so that the agent does possess knowledge while at the same time having a weaker justification for what she believes (where strength of justification is again assessed in terms of the likelihood, given this justification, that the agent's belief is true). If the agent had formed her true belief by reading the results in a reliable newspaper, for example, then she would count as knowing the target proposition and can then infer that she should throw the ticket away without criticism. It is more likely, however, that the newspaper has printed the result wrongly than that she should win the lottery. This sort of consideration seems to show that knowledge, even when accompanied by a relatively weak justification, is better (at least when it comes to practical reasoning) than a true belief that is supported by a relatively strong justification but does not amount to knowledge. If this is the right way to think about the connection between knowledge possession and practical reasoning, then it seems to offer at a potential response to at least the secondary value problem.
In response to Hawthorne's claim about the pivotal role of knowledge in practical reasoning, Matthew Weiner (2009) has argued that knowledge is not important in itself for practical reasoning. More specifically, he argues that knowledge is what he calls a “Swiss Army Concept”, in the sense that when we ascribe knowledge we thereby ascribe several valuable sub-concepts—Weiner lists truth, justification, persistence, stability of justification, and safety (i.e., that one could not have easily been wrong). Each of these sub-concepts could be valuable to us, depending upon which standpoint on our practical reasoning we take, but on no standpoint is knowledge of particular value. Thus, claims Weiner, the value of knowledge relates to how ascribing knowledge is a shorthand way of ascribing a number of valuable sub-concepts, each of which may be of particular value in our practical reasoning depending upon what standpoint on our practical reasoning we take. But knowledge has no special value in itself, at least as regards practical reasoning.
For example, one standpoint that could be taken on your practical reasoning is to care about whether things turn out well for you. From this standpoint, argues Weiner, it is truth that is especially important. Consider again a case in which one reasons from one's true belief that one owns a losing lottery ticket to the conclusion that one should not bother checking the lottery result in the paper. Although this reasoning might seem generally suspicious, as we noted above, from this specific perspective it is unobjectionable—after all, things do turn out well for you in this case because, since your premises are true, you rightly save yourself the trouble of finding out what the local newspaper says about the lottery result.
In contrast, from other standpoints, such at that of caring that your reasoning not be vulnerable to criticism, a different result will be generated. In the case under consideration, for example, it would be remiss not to check the lottery result in a local newspaper given that there is a chance that you have won a large cash prize, and given also that making such a check would not be unduly onerous. From different perspectives, then, the very same practical inference could be assessed differently. But from no perspective, argues Weiner, does it matter that one knows one's premises.
Whether or not Weiner is right about this, it is an intriguing possibility that the value placed on knowledge might derive from its being a Swiss Army Concept in this way. For it highlights the fact that how we understand the concept of knowledge can have important ramifications for how we go about determining the special value, if any, of knowledge.
A second author who thinks that our understanding of the concept of knowledge can have important ramifications for the value of knowledge is Edward Craig (1990). Craig's project begins with a thesis about the value of the concept of knowledge. Simplifying somewhat, Craig hypothesises that the concept of knowledge is important to us because it fulfils the valuable function of enabling us to identify reliable informants. The idea is that it is clearly of immense practical importance to be able to recognise those from whom we can gain true beliefs, and that it was in response to this need that the concept of knowledge arose. As with Hawthorne's theory, this proposal, if correct, could potentially offer a resolution of at least the secondary value problem.
What is particularly interesting about Craig's approach for our present purposes is that he claims that the concept of knowledge has evolved over time away from its original function through a process Craig calls “objectification”. In essence, the process of objectification occurs because the need to eliminate error that is built-into the concept of knowledge becomes ‘stretched’ to accommodate increasingly demanding error-possibilities as we become intellectually more sophisticated. This is why, according to Craig, we have ended up with a concept of knowledge that sometimes denies knowledge to those who are clearly good informants—e.g., when some far-fetched error-possibility is made salient—even though the original function was to enable us to identify reliable informants.
This proposal that the concept of knowledge may have changed over time so that what we now call ‘knowledge’ may sometimes perform a different function to the one that our original concept of knowledge was supposed to track is clearly of central importance to debates about the value of knowledge, as Craig's account of objectification indicates. After all, if we make the plausible assumption, with Craig, that at least the original function of knowledge was to pick out some property of agents that was valuable to us, then on this picture of an ‘evolving’ concept we can both account for the fact that our present-day conception of knowledge seems to be of particular value even though there are cases in which knowledge is ascribed where it is not of any distinctive value. If this is right, then we should not look to the necessary and sufficient conditions for knowledge in order to determine why it seems to be of distinctive value to us, but rather merely to its original function. For critical discussion of Craig's view, see Feldman (1997).
Laurence BonJour argues that reflecting on the value of knowledge leads us to reject a prevailing trend in epistemology over the past several decades, namely, fallibilism, or what BonJour calls the “weak conception” of knowledge.
BonJour outlines four traditional assumptions about knowledge, understood as roughly justified true belief, which he “broadly” endorses (BonJour 2010: 58–9). First, knowledge is a “valuable and desirable cognitive state” indicative of “full cognitive success.” Any acceptable theory of knowledge must “make sense of” knowledge's important value. Second, knowledge is “an all or nothing matter, not a matter of degree.” There is no such thing as degrees of knowing: either you know or you don't. Third, epistemic justification comes in degrees, from weak to strong. Fourth, epistemic justification is essentially tied to “likelihood or probability of truth,” such that the strength of justification covaries with how likely it makes the truth of the belief in question.
On this traditional approach, we are invited to think of justification as measured by how probable the belief is given the reasons or evidence you have. We can measure probability any way we like, but one convenient way to measure it is to use the decimals in the interval [0, 1] on the number line. A probability of 0 means that the claim is guaranteed to be false. A probability of 1 means that the claim is guaranteed to be true. A probability of .5 means that the claim is just as likely to be true as it is to be false. The question then becomes, how probable must your belief be for it to be knowledge?
Obviously it must be greater than .5. But how much greater? Suppose we say that knowledge requires a probability of 1 – that is, knowledge requires our justification or reasons to guarantee the truth of the belief. Call such reasons conclusive reasons.
The strong conception of knowledge says knowledge requires conclusive reasons. We can motivate the strong conception as follows. If the aim of belief is truth, then it makes sense that knowledge would require conclusive reasons, because conclusive reasons guarantee that belief's aim is achieved. The three components of the traditional view of knowledge thus fit together “cohesively” to explain why knowledge is valued as a state of full cognitive success.
But all is not well with the strong conception, or so philosophers have claimed over the past several decades. The strong conception seems to entail that we know nearly nothing at all about the material world outside of our own minds or about the past. For we could have had all the reasons we do in fact have, even if the world around us or the past had been different. (Think of Descartes's evil genius.) This conflicts with commonsense and counts against the strong conception. But what is the alternative?
The alternative is that knowledge requires reasons that make the belief very likely true, but needn't guarantee it. This is the weak conception of knowledge. Most epistemologists accept the weak conception of knowledge. But BonJour asks a challenging question: what is the “magic” level of probability required by knowledge? BonJour then argues that a satisfactory answer to this question isn't forthcoming. For any point short of 1 would seem arbitrary. Why should we pick that point exactly? The same could be said for a vague range that includes points short of 1 – why, exactly, should the vague range extend roughly that far but not further? This leads to an even deeper problem for the weak conception. It brings into doubt the value of knowledge. Can knowledge really be valuable if it is arbitrarily defined? BonJour elaborates on this line of argument:
Perhaps the clearest way to think about this problem is to suppose that there is some issue about which it is important to you to find the truth, and that there is some specific proposition that constitutes the best candidate you can find for the truth about this issue. It is easy to understand how finding higher and higher levels of justification for the claim in question improves your cognitive situation, making it more likely that the corresponding belief is true, and also how finding genuinely conclusive justification, if that were possible, would be the best situation of all. But the claim of the weak conception is that there is some specific level of justification that is less than conclusive but nonetheless transforms your cognitive situation in a much more radical way than did increases in justification up to that point (or further increases above it). Before this level is attained, you merely have a belief that is more and more likely or probable, but at that point you suddenly have knowledge. But why does achieving this specific level of justification make such a difference and what exactly is this difference supposed to amount to? . . . It is hard to see why such further increases are not valuable in exactly the same way, to precisely the same extent, as those that came earlier, before the supposed “magic” level was reached. (BonJour 2010: 61)
A closely related problem for the weak conception presents itself. Suppose for the sake of argument that we settle on .9 as the required level of probability. Suppose further that you believe Q and you believe R, that Q and R are both true, and that you have reached the .9 threshold for each. Thus the weak conception entails that you know Q, and you know R. Intuitively, if you know Q and you also know R, then you're automatically in a position to know the conjunction (Q & R). But the weak conception cannot sustain this judgment. For the probability of the conjunction of two independent claims, such as Q and R, equals the product of their probabilities. (This is the special conjunction rule from probability theory.) In this case, the probability of Q = .9 and the probability of R = .9. So the probability of the conjunction (Q&R) = .9 × .9 = .81, which falls short of the required .9. So the weak conception of knowledge along with a law of probability entail that you're automatically not in a position to know the conjunction (Q&R). BonJour considers this to be “an intuitively unacceptable result,” because after all, “what is the supposed state of knowledge really worth, if even the simplest inference from two pieces of knowledge [might] not lead to further knowledge?” (BonJour 2010: 63).
BonJour concludes that the weak conception fails miserably to explain the value of knowledge, and thus that the strong conception must be true. He recognizes that this implies that we don't know most of the things we ordinarily say and think that we know. He explains this away, however, partly on grounds that knowledge is the norm of practical reasoning, which creates strong “practical pressure” to confabulate or exaggerate in claiming to know things, so that we can view ourselves as reasoning and acting appropriately, even though usually the best we can do is to approximate appropriate action and reasoning. (BonJour 2010: 75).
One potential objection to this way of understanding BonJour's discussion is that it presupposes that the weak conception of knowledge must be paired a continuous quantitative model of epistemic justification. But there are views of justification which understand it qualitatively, with potentially significant differences between adjacent levels or grades of justification (compare Chisholm 1989 and Conee and Feldman 2004: esp. 277–306)). For example, following Chisholm (1989: 16), it might be proposed justification for a belief might come in the following grades: (1) probable, (2) epistemically in the clear, (3) beyond reasonable doubt, (4) evident, (5) obvious, and (6) certain. If we pair the weak conception of knowledge with a qualitative model of justification such as this, then it's no longer clear that the resulting view will fail to respect the closure of knowledge under conjunction, because the rules of probability theory employed in BonJour's argument don't obviously apply to the qualitative categories. (At the same time, neither is it obvious that there won't be analogues of these rules for the qualitative categories.) And it's no longer clear that the resulting view will be incapable of providing a principled account of the minimal level of justification sufficient for knowledge, because there is an important qualitative difference between, say, a belief's evident and not merely beyond a reasonable doubt. We might still have to explain why a belief must reach level 4 rather 3 to be knowledge, but this preference is not open to the charge of arbitrariness in the same way as would be a decision to prefer .83 to .829.
Timothy Williamson (2000: ch. 1) argues that knowledge is the most general factive propositional attitude. Knowledge is a propositional attitude, just as belief and hope are. Each is a mental state that takes as its object a proposition, such as the proposition that there is a predator ahead: you can believe that there is a predator ahead, hope that there is a predator ahead, and know that there is a predator ahead. To say that a propositional attitude is factive is to say that it is impossible for you to have that attitude towards anything other than a true proposition. Belief and hope are non-factive propositional attitudes. It is widely assumed that knowledge is factive.
But what does it mean to say, as Williamson does, that knowledge is the most general factive propositional attitude? It means that the following is a necessarily true generalization: if you bear any factive propositional attitude toward the proposition P, then you know that P. Other factive attitudes include perceiving and remembering. Williamson counts perceiving and remembering as ways of knowing, in the same way that being crimson is a way of being red, and being square is a way of being rectangular.
In support of his claim that knowledge is the most general factive propositional attitude, Williamson points out that it explains why we value knowledge: “The point of the conjecture is to illuminate the central role of the concept of knowing in our thought. It matters to us because factive stative attitudes matter to us” (Williamson 2000: 34). We value a match between mind and world, and knowing is the most general attitude in which mind must match world, which explains why we value knowing. (Notice that explaining why we value knowing is a subtly different question from the primary, secondary, or tertiary problems discussed earlier.)
In response, John Turri (2010) points out that we don't need anything as strong as Williamson's thesis to explain why we value knowledge. Explaining why we value something needn't, and often doesn't, involve necessarily true generalizations, Turri claims. For example, we value saving for retirement because we want to retire comfortably. This does not require that, necessarily, one retires comfortably only if one saves for retirement. Nevertheless, as a matter of fact, almost invariably one will retire comfortably only if one saves for retirement. This seems like a perfectly adequate basis from which to explain why we value saving for retirement.
Another of Williamson's arguments is directly aimed at the primary value problem. Writes Williamson,
Knowledge is superior to mere true belief because, being more robust in the face of new evidence, it better facilitates action at a temporal distance. Other things being equal, given rational sensitivity to new evidence, present knowledge makes future true belief more likely than mere present true belief does. (Williamson 2000: 101).
Plato argued that knowledge is more valuable than true belief because knowledge is “tied down” to the truth in a way that mere true belief isn't, and so is more likely to remain a useful guide to action in the long run. But, as has been pointed out (e.g. Hyman 2010), mere beliefs, whether true or not, can be maintained as stubbornly as any piece of knowledge can. So it's not clear why, in any given case, we should expect knowledge to be more psychologically durable than mere true belief, and this is a problem for Plato's view. But Williamson's argument here goes one step beyond Plato's, adding that given rational sensitivity to new evidence, knowledge is more likely to be a useful guide in the long run than a mere true belief. And this additional fact about knowledge's superior rational durability does seem valuable.
In response, John Hyman has argued that Williamson's account, while an improvement over Plato's, remains “unsatisfactory or incomplete” (Hyman 2010: 407). For we do not, Hyman argues, value knowledge over true belief merely because, given rational sensitivity, it is more likely to bring success in the long run. Whether or not knowledge is more useful for long-term planning and successful agency, we still think it is in some sense better. And there might also be cases of “knowledge without a shelf life,” that is, knowledge of fleeting events that affect our decision-making for only an instant, after which time knowledge of such events will forever after be practically irrelevant, or at least no more practically relevant than a mere true belief that such events occurred (Hyman 2010: 409). Williamson's view seems incapable of explaining why knowledge without a shelf life seems better than the corresponding mere true belief.
Hyman concludes that Plato and Williamson both fail to solve the primary value problem because they employed an impoverished “repertoire of concepts,” limiting themselves to belief and action. Hyman takes this as an opportunity to “think afresh about what knowledge is,” and suggests that we can make progress by thinking of knowledge as an ability. More specifically, “knowledge is the ability to be guided by the facts,” where being guided by the facts is shorthand for basing our actions on the facts themselves as our reasons. Thus if you don't know P, then the fact that P can't be your reason for doing anything. If you merely truly believe that P, then when you act, the fact that P can't be your reason for doing anything. But if you know, for instance, that this is the road to Larissa, then the fact that it is the road to Larissa can be your reason for selecting it in order to get to Larissa. “Only the person who knows will be guided by the fact that” this is the road to Larissa, as opposed to being “merely influenced by his state of mind,” that is, by his belief, true or not, that this is the road to Larissa. This solves “Plato's puzzle”—i.e. the Meno problem—Hyman argues, because we care not only about believing the truth and acting successfully, but also “about our reasons, and in particular, we want our reasons to be facts,” in which case “we are bound to regard knowledge as a better guide to acting the right way than mere true belief” (Hyman 2010: 412–13).
So far, in common with most of the contemporary literature in this regard, we have tended to focus on the value of knowledge relative to other epistemic standings. A related debate in this respect, however—one that has often taken place largely in tandem with the mainstream debate on the value of knowledge—has specifically concerned itself with the value of true belief and we will close by considering this issue.
Few commentators treat truth or belief as being by themselves valuable (though see Kvanvig 2003: ch. 1), but it is common to treat true belief as valuable, at least instrumentally. True beliefs are clearly often of great practical use to us. The crucial caveat here, of course, concerns the use of the word ‘often’. After all, it also often the case that a true belief might actually militate against one achieving one's goals, as when one is unable to summon the courage to jump a ravine and thereby get to safety, because one knows that there is a serious possibility that one might fail to reach the other side. In such cases it seems that a false belief in one's abilities—e.g., the false belief that one could easily jump the ravine—would be better than a true belief, if the goal in question (jumping the ravine) is to be achieved.
Moreover, some true beliefs are beliefs in trivial matters, and in these cases it isn't at all clear why we should value such beliefs at all. Imagine someone who, for no good reason, concerns herself with measuring each grain of sand on a beach, or someone who, even while being unable to operate a telephone, concerns herself with remembering every entry in a foreign phonebook. Such a person would thereby gain lots of true beliefs but, crucially, one would regard such truth-gaining activity as rather pointless. After all, these true beliefs do not seem to serve any valuable purpose, and so do not appear to have any instrumental value (or, at the very least, what instrumental value these beliefs have is vanishingly small). It would, perhaps, be better—and thus of greater value—to have fewer true beliefs, and possibly more false ones, if this meant that the true beliefs that one had concerned matters of real consequence.
At most, then, we can say that true beliefs often have instrumental value. What about final (or intrinsic) value? One might think that if the general instrumental value of true belief was moot then so too would be the intuitively stronger thesis that true belief is generally finally valuable. Nevertheless, many have argued for such a claim.
One condition that seems to speak in favour of this thesis is that as truth seekers we are naturally curious about what the truth is, even when that truth is of no obvious practical import. Accordingly, it could be argued that from a purely epistemic point of view, we do regard all true belief as valuable for its own sake, regardless of what further prudential goals we might have (e.g., Goldman 1999: 3; Lynch 2004: 15–16; Alston 2005: 31). Curiosity will only take you so far in this regard, however, since we are only curious about certain truths, not all of them. To return to the examples given a moment ago, no fully rational agent is curious about the measurements of every grain of sand on a given beach, or the name of every person in a random phonebook—i.e., no rational person wants to know these truths independently of having some prudential reason for knowing them.
Still, one could argue for a weaker claim and merely say that it is prima facie or pro tanto finally good to believe the truth (cf. David 2005; Lynch 2009), where cases of trivial truths such as those just given are simply cases where, all things considered, it is not good to believe the truth. After all, we are familiar with the fact that something can be prima facie or pro tanto finally good without being all-things-considered good. For example, it may be finally good to help the poor and needy, but not all-things-considered good given that helping the poor and needy would prevent you from doing something else which is at present more important (such as saving that child from drowning).
At this point one might wonder why it matters so much to (some) epistemologists that true belief is finally valuable. Why not instead just treat true belief as often of instrumental value and leave the matter at that? The answer to this question lies in the fact that many want to regard truth—and thereby true belief—as being the fundamental epistemic goal, in the sense that ultimately it is only truth that is epistemically valuable (so, for example, while justification is epistemically valuable, it is only epistemically valuable because of how it is a guide to truth). Accordingly, if true belief is not finally valuable—and only typically instrumentally valuable—then this seems to downplay the status of the epistemological project.
There are a range of options here. The conservative option is to contend that truth is the fundamental goal of epistemology and also contend that true belief is finally valuable—at least in some restricted fashion. Marian David (2001; 2005) falls into this category. In contrast, one might argue that truth is the fundamental goal while at the same time claiming that true belief is not finally valuable. Sosa (see especially 2004, but also 2000; 2003) seems (almost) to fall into this camp, since he claims that while truth is the fundamental epistemic value, we can accommodate this thought without having to thereby concede that true belief is finally valuable. Sosa often compares the epistemic domain to other domains of evaluation where the fundamental good of that domain is not finally valuable. So, for example, the fundamental goal of the ‘coffee-production’ domain may be great tasting coffee, but no-one is going to argue that great tasting coffee is finally valuable. Perhaps the epistemic domain is in this respect like the coffee-production domain?
Another axis on which this debate can be configured is in terms of whether one opts for an epistemic-value monism or an epistemic-value pluralism—that is, whether one thinks there is only one fundamental epistemic goal, or several. Kvanvig (e.g., 2005) would be an example of someone who endorses epistemic-value pluralism, since he thinks that there are a number of fundamental epistemic goals, with each of them being of final value. Crucial to Kvanvig's argument is that there are some epistemic goals which are not obviously truth-related—he cites the examples of having an empirically adequate theory, making sense of the course of one's experience, and inquiring responsibly. This is important because if the range of epistemic goals that Kvanvig identified were all truth-related, then it would prompt the natural response that such goals are valuable only because of their connection to the truth, and hence not fundamental epistemic goals at all.
Presumably, though, it ought also to be possible to make a case for an epistemic-value pluralism where the fundamental epistemic goals were not finally valuable (or, at least, à la Sosa, where one avoided taking a stance on this issue). More precisely, if an epistemic-value monism that does not regard the fundamental epistemic goal as finally valuable can be made palatable, then there seems no clear reason why a parallel view that opted for pluralism in this regard could not similarly be given a plausible supporting story.
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Thanks to Earl Conee and Alan Millar for useful comments on an earlier version of this entry.