Can Empirical Knowledge Have a Foundation? Author(S): Laurence Bonjour Source: American Philosophical Quarterly, Vol
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North American Philosophical Publications Can Empirical Knowledge Have a Foundation? Author(s): Laurence Bonjour Source: American Philosophical Quarterly, Vol. 15, No. 1 (Jan., 1978), pp. 1-13 Published by: University of Illinois Press on behalf of the North American Philosophical Publications Stable URL: http://www.jstor.org/stable/20009690 . Accessed: 10/01/2015 18:24 Your use of the JSTOR archive indicates your acceptance of the Terms & Conditions of Use, available at . http://www.jstor.org/page/info/about/policies/terms.jsp . JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact [email protected]. University of Illinois Press and North American Philosophical Publications are collaborating with JSTOR to digitize, preserve and extend access to American Philosophical Quarterly. http://www.jstor.org This content downloaded from 129.118.139.129 on Sat, 10 Jan 2015 18:24:08 PM All use subject to JSTOR Terms and Conditions American Philosophical Quarterly Volume 15, Number 1, January 1978 I. CAN EMPIRICAL KNOWLEDGE HAVE A FOUNDATION? LAURENCE BONJOUR HPHE idea that empirical knowledge has, and decisive argument which seems to rule out all non * must a common have, afoundation has been tenet skeptical alternatives to foundationism, thereby of most major epistemologists, both past and showing that some version of foundationism must There have as we shall see present. been, further be true (on the assumption that skepticism is false). below, many importantly different variants of this In a recent statement by Quinton, this argument idea. But the common denominator among them, runs as follows: the central thesis of epistemological foundationism If beliefs are to be at . must as I shall understand it here, is the claim that any justified all, there be some terminal beliefs that do not owe their . certain empirical beliefs possess a degree of credibility to others. For a belief to be justified it is not epistemic justification or warrant which does not enough for it to be accepted, let alone merely enter? depend, inferentially or otherwise, on the justifi? tained: there must also be good reason for accepting cation of other beliefs, but is instead an empirical it. Furthermore, for inferential belief to be justified somehow immediate or intrinsic. It is these non the beliefs that support itmust be justified themselves. inferentially justified beliefs, the unmoved (or self There must, therefore, be a kind of belief that does movers as not owe moved) of the epistemic realm Chisholm its justification to the support provided by has called them,1 that constitute the foundation others. Unless this were so no belief would be justified at for to belief would the ante? upon which the rest of empirical knowledge is all, justify any require cedent of an infinite series of beliefs. The alleged to rest. justification terminal . beliefs that are needed to the In recent years, the most familiar foundationist bring of to a need not be views have been to severe and continuous regress justification stop strictly subjected self-evident in the sense that somehow attack. But this attack has been aimed they justify rarely themselves. All that is is that should not at the central foundationist thesis required they directly itself, owe their justification to any other beliefs.2 and new versions of foundationism have been quick to emerge, often propounded by the erst? I shall call this argument the epistemic regress argu? while critics themselves. Thus foundationism has ment, and the problem which generates it, the a to come become philosophical hydra, difficult to epistemic regress problem. Since it is this argument grips with and seemingly impossible to kill. The which provides the primary rationale and argu? to a purposes of this paper are, first, distinguish and mentative support for foundationism, careful clarify the main dialectical variants of foundation? examination of itwill also constitute an exploration as ism, by viewing them responses to one funda? of the foundationist position itself. The main dia? mental problem which is both the main motivation lectical variants of foundationism can best be and the primary obstacle for foundationism; and understood as differing attempts to solve the regress second, as a result of this discussion to offer problem, and the most basic objection to the schematic reasons for doubting whether any version foundationist approach is that it is doubtful that of foundationism is finally acceptable. any of these attempts can succeed. (In this paper, reason The main for the impressive durability of I shall be concerned with the epistemic regress is not foundationism any overwhelming plaus? argument and the epistemic regress problem only ibility attaching to the main foundationist thesis in as they apply to empirical knowledge. It is obvious one itself, but rather the existence of apparently that an analogous problem arises also for a priori 1 Roderick M. Chisholm, Theory of Knowledge (Englewood Cliffs, N.J., p. 30. * 1966), The an Anthony Quinton, Nature of Things (London, 1973), p. 119. This is extremely venerable argument, which has played a central role in epistemological discussion at least since Aristotle's statement of it in the Posterior Analytics, Book I, ch. 2-3. have found an (Some anticipation of the argument in the Theaetetus at 209E-210B, but Plato's worry in that passage appears to be that the definition of to an proposed knowledge is circular, not that it leads infinite regress of justification.) I This content downloaded from 129.118.139.129 on Sat, 10 Jan 2015 18:24:08 PM All use subject to JSTOR Terms and Conditions 2 AMERICAN PHILOSOPHICAL QUARTERLY knowledge, but there it seems likely that the argu? solely because it is now seen to be inferentially ment would take a different course. In particular, a justifiable. Second, less obviously, a person for foundationist approach might be inescapable in an whom a belief is inferentially justified need not account of a priori knowledge.) have explicitly rehearsed the justificatory argu? ment in question to others or even to himself. It is enough that the inference be available to him if the I belief is called into question by others or by himself out The epistemic regress problem arises directly (where such availability may itself be less than as of the traditional conception of knowledge fully explicit) and that the availability of the infer? adequately justified true beliefz?whether this be taken ence be, in the final analysis, his reason for holding as a fully adequate definition of knowledge or, in the belief.6 It seems clear that many beliefs which light of the apparent counter-examples discovered are quite sufficiently justified to satisfy the justifi? as a by Gettier,4 merely necessary but not sufficient cation criterion for knowledge depend for their condition. (I shall assume throughout that the justification on inferences which have not been are elements of the traditional conception at least explicitly formulated and indeed which could not necessary for knowledge.) Now the most natural be explicitly formulated without considerable re? a a way to justify belief is by producing justificatory flective effort (e.g., my current belief that this is the some argument: beliefs is justified by citing other same piece of paper upon which I was typing (perhaps conjunctive) belief B> from which A is yesterday).7 inferable in some acceptable way and which is thus Suppose then that belief A is (putatively) justified offered as a reason for accepting A.5 Call this via inference, thus raising the question of how the inferential justification. It is clear, as Quinton points justifying premise-belief B is justified. Here again out in the passage quoted above, that for A to be the answer may be in inferential terms: B may be a genuinely justified by virtue of such justificatory (putatively) justified in virtue of being inferable argument, B must itself be justified in some from some further belief C. But then the same fashion; merely being inferable from an unsup? question arises about the justification of C, and so or would confer no an ported guess hunch, e.g., on, threatening infinite and apparently genuine justification upon A. vicious regress of epistemic justification. Each belief an Two further points about inferential justification, is justified only if epistemically prior be? as understood here, must be briefly noted. First, lief is justified, and that epistemically prior belief is the belief in question need not have been arrived at justified only if a still prior belief is justified, etc., as the result of an inference in order to be infer with the apparent result that justification can a never no entially justified. This is obvious, since belief get started?and hence that there is justi? some as a no arrived at in other way (e.g., result of fication and knowledge. The foundationist claim wishful thinking) may later come to be maintained is that only through the adoption of some version 3 to as "Adequately justified" because a belief could be justified to some degree without being sufficiently justified qualify knowledge (if true). But it is far from clear just how much justification is needed for adequacy. Virtually all recent epistemo logists agree that certainty is not required. But the lottery paradox shows that adequacy cannot be understood merely in terms a see of some specified level of probability. (For useful account of the lottery paradox, Robert Ackermann, Knowledge and Belief that what is (Garden City, N.Y., 1972), pp. 39-50.) Armstrong, in Belief, Truth and Knowledge (London, 1973), argues required is that one's reasons for the belief be "conclusive," but the precise meaning of this is less than clear.