Relativist and constructivist conceptions of knowledge have become orthodoxy in vast stretches of the academic world in recent times. This book critically examines such views and argues that they are fundamentally flawed. The book focuses on three different ways of reading the claim that knowledge is socially constructed, one about facts and two about justification. All three are rejected. The intuitive, common sense view is that there is a way things are that is independent of human opinion, and that we (...) are capable of arriving at belief about how things are that is objectively reasonable, and is binding on anyone capable of appreciating the relevant evidence, regardless of their social or cultural perspective. Difficult as these notions may be, it is a mistake to think that recent philosophy has uncovered powerful reasons for rejecting them. (shrink)

Should a principle of charity be applied to the interpretation of the colour concepts exercised in visual experience? We think not. We shall argue, for one thing, that the grounds for applying a principle of charity are lacking in the case of colour concepts. More importantly, we shall argue that attempts at giving the experience of colour a charitable interpretation either fail to respect obvious features of that experience or fail to interpret it charitably, after all. Charity to visual experience (...) is therefore no motive for resisting the natural, Galilean response to a scientific understanding of light and vision. The best interpretation of colour experience ends up convicting it of widespread and systematic error. (shrink)

This paper argues that, given a certain apparently inevitable thesis about content, we could not know our own minds. The thesis is that the content of a thought is determined by its relational properties.

This essay distinguishes between metaphysical and epistemological conceptions of analyticity. The former is the idea of a sentence that is ‘true purely in virtue of its meaning’ while the latter is the idea of a sentence that ‘can be justifiably believed merely on the basis of understanding its meaning’. It further argues that, while Quine may have been right to reject the metaphysical notion, the epistemological notion can be defended from his critique and put to work explaining a priori justification. (...) Along the way, a number of further distinctions relevant to the theory of analyticity and the theory of apriority are made and their significance is explained. (shrink)

It is very common these days to come across the claim that the notions of mental content and linguistic meaning are normative notions. In the work of many philosophers, it plays a pivotal role. Saul Kripke made it the centerpiece of his influential discussion of Wittgenstein’s treatment of rulefollowing and private language; he used it to argue that the notions of meaning and content cannot be understood in naturalistic terms. Kripke’s formulations tend to be in terms of the notion of (...) linguistic meaning, but his argumentative strategy makes it clear that he holds both versions of the claim.... (shrink)

The paper asks under what conditions deductive reasoning transmits justification from its premises to its conclusion. It argues that both standard externalist and standard internalist accounts of this phenomenon fail. The nature of this failure is taken to indicate the way forward: basic forms of deductive reasoning must justify by being instances of ‘blind but blameless’ reasoning. Finally, the paper explores the suggestion that an inferentialist account of the logical constants can help explain how such reasoning is possible.

A stellar line-up of leading philosophers from around the world offer new treatments of a topic which has long been central to philosophical debate, and in ...

According to a very natural picture of rational belief, we aim to believe only what is true. However, as Bernard Williams used to say, the world does not just inscribe itself onto our minds. Rather, we have to try to figure out what is true from the evidence available to us. To do this, we rely on a set of epistemic rules that tell us in some general way what it would be most rational to believe under various epistemic circumstances. (...) We reason about what to believe; and we do so by relying on a set of rules.... (shrink)

An irrealist conception of a given region of discourse is the view that no real properties answer to the central predicates of the region in question. Any such conception emerges, invariably, as the result of the interaction of two forces. An account of the meaning of the central predicates, along with a conception of the sorts of property the world may contain, conspire to show that, if the predicates of the region are taken to express properties, their extensions would have (...) to be deemed uniformly empty. The question then becomes whether the predicates are best understood as expressing properties, and hence as founded on error, or whether they ought to be understood along non-factualist lines.z Historically, irrealist models were developed primarily in connection with evaluative discourse, although as physicalism has flourished and as reductionist programs have failed, their application has been extended to many other domains. Indeed, it is one of the more influential suggestions in contemporary philosophy of mind that they apply even to ordinary belief/desire psychology. A correct understanding of the semantics and metaphysics of content-based psychology leaves us, so the proponents of the in-. (shrink)

This volume presents a series of influential essays by Paul Boghossian on the theory of content and on its relation to the phenomenon of a priori knowledge. The essays are organized under four headings: the nature of content; content and self-knowledge; knowledge, content, and the a priori; and colour concepts.

This chapter aims to provide materials with which to substantiate the claim that, under the appropriate circumstances, the notion of analyticity can help explain how one might have a priori knowledge even in the strong sense. It argues that Implicit Definition, properly understood, is completely independent of any form of irrealism about logic. The chapter defends the thesis of Implicit Definition against Quine's criticisms, and examines the sort of account of the apriority of logic that this doctrine is able to (...) provide. The chapter shows that, against the background of a rejection of indeterminacy, its insolubility cannot be conceded. It also argues that neither a non‐factualism about Frege‐analyticity, nor an error thesis about it, can plausibly fall short of an outright rejection of meaning itself. The chapter shows how the doctrine that appears to offer the most promising account of how we grasp the meanings of the logical constants. (shrink)

The dispute between realists about color and anti-realists is actually a dispute about the nature of color properties. The disputants do not disagree over what material objects are like. Rather, they disagree over whether any of the uncontroversial facts about material objects--their powers to cause visual experiences, their dispositions to reflect incident light, their atomic makeup, and so on--amount to their having colors. The disagreement is thus about which properties colors are and, in particular, whether colors are any of the (...) properties in a particular set that is acknowledged on both sides to exhaust the properties of material objects. In a previous paper we discussed at length one attempt to identify colors with particular properties of material objects--namely, with their dispositions to cause visual experiences. Here we shall discuss a different and perhaps more influential version of realism, which says that the colors of material objects are microphysical properties of their surfaces. We shall call this theory physicalism about color (physicalism, for short). In order to evaluate this theory, however, we shall first have to clarify some methodological issues. Our hope is that we can bring some further clarity to the question of color realism, whether or not we succeed in our critique of the physicalists' answer. (shrink)

Compatibilism combines an externalist view of mental content with a doctrine of privileged self‐knowledge. The essay presents a reductio of compatibilism by arguing that if compatibilism were true, we would be in a position to know certain facts about the world a priori, facts that no one can reasonably believe are knowable a priori. Whether this should be taken to cast doubt on externalism or privileged self‐knowledge is not discussed. Consideration is given to the ’empty case’—the case in which a (...) thinker expresses what he takes to be a genuine thought concerning a natural kind but where there is in fact no relevant natural kind, so that the putative natural kind term fails to refer. It is argued that, in such a case, on an externalist conception of natural kind terms, the thinker is deluded in taking himself to be expressing a complete thought, and that such delusions are not compatible with privileged self‐knowledge. (shrink)

I believe that the notion of epistemic transparency does play an important role in our ordinary conception of mental content and I want to say what that role is. Unfortunately, the task is a large one; here I am able only to begin on its outline. I shall proceed somewhat indirectly, beginning with a discussion of externalist conceptions of mental content. I shall show that such conceptions violate epistemic transparency to an extent that has not been fully appreciated. Subsequently, I (...) shall look at the implications of this violation and at the reconstructive project that a rejection of transparency entails. I am inclined to think it unlikely that we will get a conception of propositional content that underwrites epistemic transparency. But I am concerned that we have not fully appreciated the role that transparency currently plays and the work that would need to be done were we to discard it. (shrink)

The question I want to look at in this paper is this: To what extent does an externalist conception of mental content threaten our ability to know the contents of our thoughts? I shall argue that, in an important sense, externalism is inconsistent with the thesis that we have authoritative first-person knowledge of thought content: in particular, I shall argue, it is inconsistent with the thesis that our thought contents are epistemically transparent to us. I shall further argue that this (...) is true in a sense that falsifies another important and traditionally fundamental view —that we can detect a priori whether our inferences are logically valid or not. I shall leave for another occasion the question whether these results reflect badly on epistemic transparency or on externalism. (shrink)

The paper is a defense of the project of explaining the a priori via the notion of meaning or concept possession. It responds to certain objections that have been made to this project—in particular, that there can be no epistemically analytic sentences that are not also metaphysically analytic, and that the notion of implicit definition cannot explain a priori entitlement. The paper goes on to distinguish between two different ways in which facts about meaning might generate facts about entitlement—inferential and (...) constitutive. It concludes by outlining a theory of the latter. (shrink)

Review of Wittgenstein on Meaning by Colin McGinn.

This chapter aims to provide materials with which to substantiate the claim that, under the appropriate circumstances, the notion of analyticity can help explain how one might have a priori knowledge even in the strong sense. It argues that Implicit Definition, properly understood, is completely independent of any form of irrealism about logic. The chapter defends the thesis of Implicit Definition against Quine's criticisms, and examines the sort of account of the apriority of logic that this doctrine is able to (...) provide. The chapter shows that, against the background of a rejection of indeterminacy, its insolubility cannot be conceded. It also argues that neither a non‐factualism about Frege‐analyticity, nor an error thesis about it, can plausibly fall short of an outright rejection of meaning itself. The chapter shows how the doctrine that appears to offer the most promising account of how we grasp the meanings of the logical constants. (shrink)

In this chapter a new problem about rule-following is outlined, one that is distinct both from Kripke’s and Wright’s versions of the problem. This new problem cannot be correctly responsed to, as Kripke’s can, by invoking Wright’s Intentional Account of rule-following. The upshot might be called, following Kant, an antinomy of pure reason: we both must — and cannot — make sense of someone’s following a rule. The chapter explores various ways out of this antinomy without here endorsing any of (...) them. (shrink)

Review of Philip Pettit’s Rules, Reasons and Norms.

The core idea seems clear enough. To say of something that it is socially constructed is to emphasize its dependence on contingent aspects of our social selves. It is to say: This thing could not have existed had we not built it; and we need not have built it at all, at least not in its present form. Had we been a different kind of society, had we had different needs, values, or interests, we might well have built a different (...) kind of thing, or built this one differently. The inevitable contrast is with a naturally existing object, something that exists independently of us and which we did not have a hand in shaping. (shrink)

This is a critical discussion of Jerry Fodor and Ernie Lepore's "Holism". The paper questions the existence of a slippery slope from some inferential liaisons are constitutive of meaning' to all inferential liaisons are constitutive of meaning'. "Interalia", it defends the existence of an analytic/synthetic distinction.

This paper argues that Devitt’s arguments in "Transcendentalism About Content" don’t show how to answer the challenge I laid down in "Status Of Content". I proceed as follows. I begin by looking at why I didn’t formulate content eliminativism in the way that Devitt does, and why I did formulate it as the thesis of “content irrealism.” I then show in detail why his criticisms are off-target.

Unlike the relativistic theses drawn from physics, normative relativisms involve relativization not to frames of reference but to something like our standards, standards that we have to be able to think of ourselves as endorsing or accepting. Th us, moral facts are to be relativized to moral standards and epistemic facts to epistemic standards. But a moral standard in this sense would appear to be just a general moral proposition and an epistemic standard just a general epistemic proposition. Pulling off (...) either relativism, then, requires not just relativizing the facts in the domain in question to the relevant standards; it requires taking a non-absolutist view of the standards themselves. Otherwise a commitment to absolute truths in the domain in question will show up in one’s attitude towards the standards themselves. But it is very hard to see how to take a genuinely non-absolutist attitude towards the standards themselves. That, in essence, is the difficulty for a relativistic view of a normative domain that I tried to develop in Chapter 6 of Fear of Knowledge. In their commentaries, Gideon Rosen and Ram Neta come up with ingenious ways of attempting to circumvent that difficulty. In my reply, I try to explain why I don’t believe they succeed. (shrink)

The fact that we can hear a particular passage of music as expressing a “tranquil gratitude” is a central aspect of the phenomenology of musical experience; without it we would be hard pressed to explain how purely instrumental music could move us in the way that it does. The trouble, here as so often elsewhere in philosophy, is that what seems necessary also seems impossible: for how could a mere series of nonlinguistic sounds, however lovely, express a state of mind? (...) One of the central tasks of the philosophy of music is to remove this mystery.... (shrink)

Reply to Schiffer's comment on Externalism and Inference.

The question whether we can have a priori knowledge, and if so to what extent, has lain at the center of philosophy practically since the beginning. For many philosophers, including Plato, Leibniz, Kant, Frege, Russell, Wittgenstein and most of the Logical Positivists, to name just a few, it seems to have been the problem around which everything else was made to turn. It's an interesting question why philosophers have been so obsessed with this problem and why they have been inclined (...) to assign it so much importance. One reason, no doubt, has to do with its relation to the possibility of philosophy itself. Although it has become fashionable in some circles to pretend otherwise, I don't really see that anyone out there has much idea how analytic philosophy is to be done, if not a priori; in particular, I don't really see that anyone has much idea how it is to be done without a hefty helping of a priori conceptual analysis.... (shrink)

This collection of newly commissioned essays, edited by NYU philosophers Paul Boghossian and Christopher Peacocke, resumes the current surge of interest in the proper explication of the notion of a priori. The authors discuss the relations of the a priori to the notions of definition, meaning, justification, and ontology, explore how the concept figured historically in the philosophies of Leibniz, Kant, Frege, and Wittgenstein, and address its role in the contemporary philosophies of logic, mathematics, mind, and science. The editors’ Introduction (...) familiarizes the reader with the issues that are to be explored in detail in later parts of the anthology. (shrink)

Replies to commentators (Loar, Yablo, Corbí, Moya) on "What the Externalist Can Know A Priori".

Review of The Metaphysics of Meaning by Jerrold Katz.

This is a critical discussion of Jerrold Katz's "The Metaphysics of Meaning". The essay raises some questions about exactly how Katz's new intensionalism' is to be understood, and about its plausibility. It also questions the views ability to solve the outstanding problems in the philosophy of mind and language.

Quine is usually read as arguing either for a non-factualism about analyticity (1) ... Or, at the very least, for an error thesis about it: (2) ... These attributions — including the stronger non-factualist thesis — seem licensed by many passages, including the famous one which concludes Quine's discussion in "Two Dogmas" ... Nevertheless, Paul Horwich does not wish to read Quine as endorsing either (1) or (2). He certainly does not wish to attribute (1) to him. And he wishes (...) to attribute only a restricted version of (2). What this restriction is and why Paul wants to make it are matters I'll come to in just a moment. (shrink)