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This paper explains the absence of the problem of other minds in ancient philosophy and links its rise in early modern philosophy with the distinction between primary and secondary qualities and the consequent veil of ideas. The futile struggles of early modern philosophers with the problems is delineated. So too are the incoherent theories of modern neuroscientists and psychologists. The sources of the manifold confusions are pinned down to use and misuse of the concept of mind, to misunderstandings about the nature of the human ability to say how things are subjectively with oneself, to misconstruals of the nature of introspection and self‐knowledge, and to the misguided picture of the "inner" and the "outer". Philosophical misunderstandings about knowledge of other minds has masked the genuine limitations on our knowledge and understanding of our fellow human beings. Some of these rest on ignorance, others on the constitutional indeterminacy of the mental. [ABSTRACT FROM AUTHOR]

It is sometimes argued that Wittgenstein's conception of grammar and the role he allocated to grammar (in his sense of the term) in philosophy changed between the Big Typescript and the Philosophical Investigations. It is also held that some of the grammatical propositions Wittgenstein asserted prior to his writing of the Philosophical Investigations are theses, doctrines, opinions or dogmatism, which he abandoned by 1936/37. The purpose of this paper is to show these claims to be misunderstandings and misinterpretations. On all important matters, his conception of grammar and of grammatical investigations, of grammatical statements or propositions and of grammatical clarification did not change between the Big Typescript and the Investigations. Grammatical propositions (e.g. the meaning of a word is its use; a sample in an ostensive definition belongs to the means of representation; belief is not a mental state) are no more theses, doctrines or opinions than is 'a bachelor is an unmarried man.' Nor are they in any way dogmatic. [ABSTRACT FROM AUTHOR]