Cora Diamond

In her Introduction to Wittgenstein’s Tractatus, Elizabeth Anscombe took it to be a fault of the Tractatus that it excluded the statement “‘Someone’ is not the name of someone”, which she took to be obviously true. It is not a bipolar proposition, and its negation, she said, peters out into nothingness. I examine the question whether she is right that the Tractatus excludes such propositions, and I consider her example in relation to other propositions which, arguably at least, have no intelligible negation. In considering the particular case of Frege’s response to Benno Kerry about the concept ‘horse’, I try to develop an account of the place in Wittgenstein’s philosophy for certain sorts of proposition which do not have an intelligible negation.

My essay is concerned with two kinds of case of asymmetries in thinking about thought. If one says that there is nothing else to think but that so and so, one may mean either that there are no considerations which could make it reasonable to think the opposite, or that to think anything else is to be in a muddle, not really to be thinking anything. A case of the latter sort is important in Elizabeth Anscombe’s criticism of Wittgenstein’s Tractatus, while a case of the former sort is important for David Wiggins’s thought about truth in ethics. After setting out the issues, I examine Anscombe’s view and situate it in relation to ideas of Frege’s and Wittgenstein’s. I then turn to ethics and consider the relation between Anscombe’s view and that of Wiggins.

I look at a disagreement between Elizabeth Anscombe, on the one hand, and Peter Winch and Ilham Dilman, on the other, about whether it is legitimate to call something an error that counts as knowledge within some alien system of belief; and I look also at the question what Wittgenstein's view was. I try to show that our understanding of what is real cannot be adequately elucidated if we consider only its role within language-games, and I argue that an important element in our thinking about what is and is not real emerges in our response to conflicting modes of thought.

One of Iris Murdoch's most characteristic philosophical ideas is that any way of understanding what moral philosophy is and how it may be practised will be shaped by deep-going conceptual attitudes, of which moral philosophers themselves may be unaware. In her own philosophical writings, she tried to bring out the role played by these attitudes, and to unsettle accepted ideas about the subject. I examine some of the elements in her thought which open up different ways of understanding the subject, and I discuss the relevance of these ideas to contemporary moral philosophy.

This essay is concerned with the question whether there is anything left of the Tractatus criticisms of Frege and Russell, if the principles on which those criticisms are apparently based are “thrown away.” I consider two examples of Tractarian arguments that criticize Russell, both of which may appear to rest on the context principle. I discuss only briefly Wittgenstein’s argument against Russell on the theory of types, but I look in detail at his criticism of Russell on generality. I show how that criticism can be understood independently of any supposed Tractarian principles. I also consider the importance of ideas in Russell’s Principles of Mathematics for the development of Wittgenstein’s thought, including the distinction between saying and showing.

Wittgensteinian ethics, it may be thought, is committed to detailed examination of realistically described cases, and hence to eschewing the abstract hypothetical cases, many of them quite bizarre, found in much contemporary moral theorizing. I argue that bizarre cases may be helpful in thinking about ethics, and that there is nothing in Wittgenstein's approach to philosophy that would go against this. I examine the case of the ring of Gyges from the Republic; and I consider also some contemporary arguments about thought-experiments in philosophy.