Abstract

The main interpretive claim of this book is that both Wittgenstein’s mature philosophical method and his much misunderstood critique of private language have their roots in his critique of the misleading metaphor of phenomenal space–that is, the misleading, figurative analogy between physical space, or space simpliciter, and phenomenal space, or the “space” of appearances. His critique of this metaphor extends from his rejection of sense-data (Chapters 2 and 3), to his investigation of the asymmetry between first- and other-person pronouns in conjunction with psychological vocabulary (Chapter 4), to his discussion of noticing aspects (Chapter 3), and, of course, to his revolutionary critique of the privacy of the mental (Chapter 3) and of the related, but more general, misleading metaphor of the inner and the outer. Wittgenstein’s critique of the idea of phenomenal space is, at the same time, the prototype for his new philosophical method–the method of grammatical investigation, which holds that many of the persistent problems of philosophy arise from failing to command a clear view of the grammar of various regions of our language and finding ourselves, as a result, vulnerable to misleading pictures of our mental lives, of our linguistic practices, of mathematics, and of countless fundamental elements of our world view(s), whose misunderstanding is the locus of the traditional problems of metaphysics (Chapter 3). Chapters 5, 6 and 7 argue for the continued relevance of Wittgenstein's critique of the misleading metaphor of phenomenal space by showing how it applies to contemporary discussions of first-person authority, recent attempts to revive sense-datum theories, and the ongoing debate about sensory qualia.