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Wittgenstein famously remarks that ‘the meaning of a word is its use’ (PI §43). Whether or not one views this as gesturing at a ‘theory’ of meaning, or instead as aiming primarily at dissuading us from certain misconceptions of language that are a source of puzzlement, it is clear that Wittgenstein held that for certain purposes the meaning of an expression could profitably be characterised as its use. Throughout his later writings, however, Wittgenstein’s appeal to the notion of use pulls in two directions. In several places, Wittgenstein seems to connect the notion of an expression’s meaning with that of use in the sense of usage or practice. More specifically, he suggests that for an expression to possess meaning is for there to be a practice of employing it according to certain rules. ‘That’, he tells us, ‘is why there exists a correspondence between the concepts “rule” and “meaning”’ (OC §62; cf. PG 68; PO 51; RFM VI §28; VW 103). Indeed, Wittgenstein goes so far as to say, ‘The rule-governed nature of our languages permeates our life’ (RC §303). Call the view that the meaning of an expression is determined by a general principle governing its use, rulism.

Published in 1953, Wittgenstein's Philosophical Investigations had a deeply unsettling effect upon our most basic philosophical ideas concerning thought, sensation, and language. Its claim that philosophical questions of meaning necessitate a close analysis of the way we use language continues to influence Anglo-American philosophy today. However, its compressed and dialogic prose is not always easy to follow. This collection of essays deepens but also challenges our understanding of the work's major themes, such as the connection between meaning and use, the nature of concepts, thought and intentionality, and language games. Bringing together leading philosophers and Wittgenstein scholars, it offers a genuinely critical approach, developing new perspectives and demonstrating Wittgenstein's relevance for contemporary philosophy. This volume will appeal to readers interested in the later Wittgenstein, in addition to those interested in the philosophy of language, the philosophy of mind, metaphysics and epistemology.

I consider the support variously offered for the remark at Philosophical Investigations 246: ‘It can’t be said of me at all (except perhaps as a joke) that I know I am in pain.’ Against the first sort of argument to be found in Wittgenstein and the literature I offer cases in which I learn of pain. Against the second sort of argument I develop the case in which I am persuaded by compelling evidence that I am, contrary to what I imagined, still in an emotional pain about N. I then consider the counter-argument that the mix of sensation and emotion in my second case makes it irrelevant as a criticism of Wittgenstein, but argue that the reverse holds. That ‘sensation’ is quite separate from ‘emotion’ is a Cartesian Mistake which is, I argue, implicit in Wittgenstein’s discussion of ‘I know I am in pain’.

Wittgenstein's private language argument in his philosophical investigations is explained and critically evaluated. The implications of Wittgenstein's conclusion that there can be no private sensation language are examined, in light of claims that Wittgenstein by the private language argument also proves that there can also be no private mental objects. The concept of a criterion of correctness is discussed as the key to Wittgenstein's reflections, and counterexamples are considered that raise doubts about the soundness of the private language argument. Difficulties identified in standard interpretations of Wittgenstein's argument indicate that the rejection of private sensation languages does not automatically imply a third-person hard psychological theory, such as logical behaviorism, nor does the argument effectively support reductivist or anti-intentionalist philosophy of mind.

Are sensation ascriptions descriptive, even in the first person present tense? Do sensation terms refer to, denote, sensations, so that truth and falsity of sensation ascriptions depend on the properties of the denoted sensations? That is, do sensation terms have a denotational semantics? As I understand it, this is denied by Wittgenstein. Wittgenstein rejects the idea of a denotational semantics for public language sensation terms, such as.