Necessarily and trivially, ‘I’ means its occurrent utterer or thinker. But how is self-reference possible? Providing an adequate answer to this very hard question is the task undertaken by John Campbell in Past, Space, and Self. His answer, in a nutshell, is that the fundamental ground of self-reference is self-consciousness; and the bulk of the book is devoted to sketching the architecture of this cognitive capacity. Campbell wants to say that the essence of self-consciousness is given in the set of (...) cognitive abilities making it possible to think of oneself as presented and individuated by means of a causal-spatiotemporal self-narrative. Not only is self-consciousness the ground of self-reference, however, but also “possession of this core set of abilities defines possession of concepts”. While Campbell thinks of his account as making up a seamless whole, I would like to distinguish for the purposes of exposition between the thesis that self-consciousness in his sense explains self-reference and the thesis that Campbellian self-consciousness explains concept-possession. It may be that the case made for one of the theses is stronger and more convincing than the case made for the other; I shall address that issue briefly later. (shrink)

Introduction to one of the most important, controversial, and suggestive works of moral philosophy ever written.

A persuasive monograph that answers the keyepistemological arguments against anti-individualism in thephilosophy of mind.

This paper is about the relations between the contents of our beliefs and the contents of the sentences used in the that‐clauses of our belief ascriptions. Loar has argued that any inference from sameness or difference of correct belief ascription to sameness or difference of belief content is illegitimate. In contrast, I defend a requirement (the Logic Requirement) that the logical properties of the sentence embedded in a belief ascription should, on that occasion of use, match the logical properties of (...) the belief content ascribed. (shrink)

A sequel to the author’s book /Frege’s Puzzle/ (1986).

Reply to Schiffer's comment on Externalism and Inference.

The book, written in a clear, engaging style, contains four chapters.

Suppose we think in a language of thought. Then Paul Boghossian' is prepared to argue, first, that there may be ambiguous Mentalese expression types that have unambiguous tokens, and, second, that the way in which this is possible allows for otherwise valid theoretical or practical reasoning to be rendered invalid owing to equivocation of a sort that may be undetectable to the reasoner. Paul sees this as a possible basis from which to launch an argument for what some might call (...) "narrow content", and this is a question I'll take up later. (shrink)

I argue that externalism about mental content is consistent with the thesis that individuals need not investigate their environment to come to know the contents of their thoughts. In particular, externalism is consistent with the thesis that we come to know the contents of our thoughts on the basis of introspection.

Pacific Philosophical Quarterly, 80:2, 136-56 (June 1999).

Psychological externalism is the thesis that the contents of many of a person's propositional mental states are determined in part by relations he bears to his natural and social environment. This thesis has recently been thrust into prominence in the philosophy of mind by a series of thought experiments due to Hilary Putnam and Tyler Burge. Externalism is a metaphysical thesis, but in this work I investigate its implications for the epistemology of the mental. I am primarily concerned with the (...) question whether externalism undermines the idea that a person typically knows the contents of her own thoughts, beliefs, and other propositional attitudes directly and authoritatively. I criticize arguments that have been advanced on behalf of a positive answer to this question, and argue that they rest on a faulty conception of the nature of first person authority, one which likens our access to our own minds to perception. An account of the basis of first person authority is sketched that locates our epistemic right to our self-ascriptions of propositional attitude not in our ability to discriminate among the various thought contents we might be thinking, but rather in our ability to express our thoughts, and to think with them in accordance with the norms of rationality. I consider also the question whether first person authority and externalism jointly make possible a refutation of certain forms of global skepticism, as has been famously argued by Putnam. I argue that Putnam's attempted refutation fails, because the crucial externalist claims that drive it are not knowable a priori. (shrink)

Most explorations of the epistemic implications of Semantic Anti- Individualism (SAI) focus on issues of self-knowledge (first-person au- thority) and/or external-world skepticism. Less explored has been SAIs implications forthe epistemology of reasoning. In this paperI argue that SAI has some nontrivial implications on this score. I bring these out by reflecting on a problem first raised by Boghossian (1992). Whereas Boghos- sians main interest was in establishing the incompatibility of SAI and the a priority of logical abilities (Boghossian 1992: 22), (...) I argue that Boghossians argument is better interpreted as pointing to SAIs implications for the na- ture of discursive justification. (shrink)

Paul Boghossian has put forward an influential argument against Tyler Burge's account of basic self‐knowledge. The argument focuses on the relation between externalism about mental content and memory. In this paper, I attempt to analyze and answer Boghossian's argument.

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.

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)

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)

In this book John Campbell shows that the general structural features of human thought can be seen as having their source in the distinctive ways in which we...

[Michael Tye] Externalism about thought contents has received enormous attention in the philosophical literature over the past fifteen years or so, and it is now the established view. There has been very little discussion, however, of whether memory contents are themselves susceptible to an externalist treatment. In this paper, I argue that anyone who is sympathetic to Twin Earth thought experiments for externalism with respect to certain thoughts should endorse externalism with respect to certain memories. /// [Jane Heal] Tye claims (...) that an externalist should say that memory content invoking natural kind concepts floats free of the setting where the memory is laid down and is at later times determined by the context in which the memory is revived. His argument assumes the existence of 'slow switching' of the meaning of natural kind terms when a person is transported from Earth to Twin Earth. But proper understanding of natural kind terms suggests that slow switching is likely never to be completed. Hence the situation of a person unknowingly transported to Twin Earth is not that his memories switch content but rather that he gets two natural kinds confused. (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.

Kripke's Pierre puzzle undermines some of the central epistemic intuitions that underlie traditional defences of the Fregean assumption that sentences'S believes that Fa ‘and'S believes that Fb’ can differ in truth value, even though a = b. Millian theorists have seized on this and employed the puzzle to reject the Fregean assumption itself. I argue that Millians are correct in rejecting traditional defences of the Fregean assumption, but they are wrong in rejecting the Fregean assumption itself. To this end, I (...) offer a different argument kr the assumption, one that is not open to Kripkean/millian objections. (shrink)

[Michael Tye] Externalism about thought contents has received enormous attention in the philosophical literature over the past fifteen years or so, and it is now the established view. There has been very little discussion, however, of whether memory contents are themselves susceptible to an externalist treatment. In this paper, I argue that anyone who is sympathetic to Twin Earth thought experiments for externalism with respect to certain thoughts should endorse externalism with respect to certain memories. /// [Jane Heal] Tye claims (...) that an externalist should say that memory content invoking natural kind concepts floats free of the setting where the memory is laid down and is at later times determined by the context in which the memory is revived. His argument assumes the existence of 'slow switching' of the meaning of natural kind terms when a person is transported from Earth to Twin Earth. But proper understanding of natural kind terms suggests that slow switching (contrary to what is often presupposed) is likely never to be completed. Hence the situation of a person unknowingly transported to Twin Earth is not that his memories switch content but rather that he gets two natural kinds confused. (shrink)