Locke was once supposed to have argued that since the colours, sounds, odours, and other ‘secondary’ qualities things appear to have can vary greatly according to the state and position of the observer, it follows that our ideas of the ‘secondary’ qualities of things do not ‘resemble’ anything existing in the objects themselves. And Berkeley has been credited with the obvious objection that similar facts about the ‘relativity’ of our perception of ‘primary’ qualities show that they do not ‘resemble’ anything existing in the objects either, so that both ‘primary’ and ‘secondary’ qualities exist only ‘in the mind’. The falsity of this view of Locke has been amply demonstrated in recent years, but no corresponding revision has been made in what remains the standard interpretation of Berkeley's criticisms of Locke. His objections therefore appear to be based on misunderstanding and to be irrelevant to what is now seen to be Locke's actual view and his reasons for holding it. I think this account of Berkeley, like the old view of Locke, is a purely fictional chapter in the history of philosophy, and in this paper I try to show that Berkeley's criticisms involve no misunderstanding and amount to a direct denial of the view Locke actually held.

In 1952, having for the first time to give a lecture in Madrid, I said somewhat dejectedly to the able and witty young man entrusted with the tedious task of revising the Spanish of my text that I found my lecture didn't amount to much: it was but a long paraphrase of one single idea. Perhaps I hoped for an enthusiastic protest on his part. But he only offered as solace the terse remark: ‘Well, I have heard many a lecture that didn't contain even one single idea’.

In reading Wittgenstein one can, and for the most part perhaps should, treat the expression ‘language-game’ as a term of art, a more or less arbitrarily chosen item of terminology meaning something like ‘an actual or possible way of using words’. It would then be a fairly routine task to work out answers to such questions as what features of the ways a word is used are emphasized by this term of art, what philosophical purposes are served by the description of primitive language-games or of variations on actual language-games, or in exactly what way those purposes are supposed to be served.

One idea that has been around for a long time is that ‘secondary’ qualities—colour, sound, temperature, taste and smell—are not really ‘in objects’ but only ‘in our minds’. If, however, one tries, without assuming any philosophical concepts, to argue for this view, he is likely to find it more difficult than he might have thought.

It is persons who are ontologically committed. But a person is not ontologically committed by virtue of his character, his height, his social standing or whatever, but by virtue of the sentences he assents to. Hence we should look to sentences for a criterion of ontological commitment. This is precisely what is done by advocates of what I will call the Referential theory. In this paper I argue that the Referential theory faces serious objections related to the role paraphrase must play in it. I then present a modified Referential theory and go on to discuss certain implications of the modified theory. More precisely, the paper divides up as follows. In §1 I present the Referential theory. In §2 I argue that it is in trouble over paraphrase. In §3 I consider a general objection to the arguments of §2. In §4 I present the modified theory. In §5 I consider the implications of the modified theory for polemic over what there is and for the existence of properties or universals.

People are organisms of a characteristic shape, with individual personalities, abilities and memories. Each of these features varies through time, but does not normally change very abruptly before death. Because these changes are only gradual, we are able to pick out one and the same individual through time, and refer to him, her or it by use of a proper name, just as we are able to refer to one and the same planet, animal or building. In particular, organisms change shape only gradually, and we have every reason to believe in the possibility of our continuing to watch the spatiotemporally continuous life-history of one and the same organism.

The right to privacy is one of the rights most widely demanded today. Privacy has not always so been demanded. The reasons for the present concern for privacy are complex and obscure. They obviously relate both to the possibilities for very considerable enjoyment of privacy by the bulk of people living in affluent societies brought about by twentieth-century affluence, and to the development of very efficient methods of thoroughly and systematically invading this newly found privacy. However, interesting and important as it is as a socio-philosophical inquiry, the concern of this paper is not with why privacy has come to be so highly prized, but rather with whether it is rightly prized, and if so, when and why. This means that my concern will be with what privacy is, what is its domain, whether there is a right to privacy, and, if so, whether it is an ultimate, basic, albeit, a prima facie right, or simply a conditional right.

As philosophers of mind we seem to hold in common no very clear view about the relevance that work in psychology or the neurosciences may or may not have to our own favourite questions—even if we call the subject ‘philosophical psychology’. For example, in the literature we find articles on pain some of which do, some of which don't, rely more or less heavily on, for example, the work of Melzack and Wall; the puzzle cases used so extensively in discussions of personal identity are drawn sometimes from the pleasant exercise of scientific fantasy, at times from surprising reports of scientific fact; and there are those who deny, as well as those who affirm, the importance of the discovery of rapid-eye-movement sleep to the philosophical treatment of dreaming. A general account of the relation between scientific, and philosophical, psychology is long overdue and of the first importance. Here I shall limit myself to just one area where the two seem to connect, discussing one type of neuropsychological research and its relevance to questions in the philosophy of mind and the philosophy of psychology.

We already have a distinction between the intension and extension of (linguistic) terms. This is not simply the distinction that is operative in philosophy of mind, body, and action. There, the concern is with things, and with a physicalistic or a mentalistic account of them. The physicalist says he supports an ‘extensional’ analysis of things, the mentalist an ‘intensional’. So, the physicalist says that, in the end, only ‘the extensional language of physical science’ will do in ontology. But, associating this physical-mental dichotomy with the intension-extension distinction as applied to terms is misleading. The ontological issue is obscured by the association. An ontologist wants, like Spinoza or Berkeley, to know whether things are extended or not, and in what respects. This question makes central the concept of space, or more generally of ‘field’, ‘domain’. Unfortunately, the same word ‘extension’ is used also for the spread or location of a thing in space. To dissociate the extension of a term, a logical notion, from the ontological notion of the spatial status of a thing, I introduce the new word ‘extention’. This coinage correlates, not with the ‘intension’ of terms—the logical correlate of ‘extension’—but with ‘intention’, a word that fortunately already has common currency, and reeks with connotations that have logical ties with ‘consciousness’. So, from here on, we have two dichotomies: intension-extension applying to terms, and intention-extention applying to things. Since terms are things, both sorts of considerations are relevant to them, the logical one and the ontological. Only the latter applies to, say, stones or persons, since these are not linguistic terms. (They may be terms of various relations.)

Professor Charles S. Chihara has criticized the views on the subject of inconsistency which Wittgenstein put forward in his recently published 1939 lectures. Chihara notes that these views are not peculiar to the 1939 lectures, and in fact they are to be found in all Wittgenstein's later writings on mathematics (e.g. WWK pp. 173ff., PR p. 189, PG pp. 303ff., RFM pp. 100ff.). So these ideas about inconsistency appear not to be just a momentary aberration on Wittgenstein's part. One would therefore expect that he had some good reasons for holding them. But Chihara justly complains that the kind of strong argumentation one would hope for is not forthcoming in these lectures. Instead Wittgenstein's usual procedure is to try to defend his views by producing series of rather unconvincing examples.

Prichard held, like some others before and since, that there is a categorial difference between knowing and believing:

To know is not to have a belief of a special kind, differing from beliefs of other kinds; and no improvement in a belief and no increase in the feeling of conviction which it implies will convert it into knowledge. Nor is their difference that of being two species of a common genus. It is not that there is a general kind of activity, for which the name would have to be thinking, which admits of two kinds, the better of which is knowing and the worse believing, nor is knowing something called thinking at its best, thinking not at its best being believing.

In 1954 F. R. Leavis wrote to the Times Literary Supplement taking issue with one of its reviewers. The reviewer had contrasted Leavis's approach to Shakespeare with that of Empson and Bradley. The latter, the reviewer had said, ‘like the plain man, or the audience in a theatre, cannot help considering the situation [in one of Shakespeare's plays] as “actual” and the characters as “real”’. Leavis, the reviewer had implied, treats the situation and characters somewhat differently.