Sidgwick argued that utilitarianism and egoism were in conflict, that neither theory was better justified than the other, and concluded that there was a ‘dualism of practical reason’ and all that remained to him was ‘universal scepticism’. The dualism argument introduced by Sidgwick is an extremely powerful sceptical argument that no theory of ethics is rationally required: it cannot be shown that a moral sceptic or an egoist ought to accept the moral theory, otherwise she is unreasonable. I explain two ways in which the significance of the dualism argument has been underestimated. First, I suggest that a hybrid theory such as utilitarianism with an egoist bias is not (as is sometimes thought) a solution to the dualism. Second, I argue that the dualism argument is not restricted to a conflict between hedonic egoism and utilitarianism, but applies to any attempt to show that a theory of ethics is rationally required.

What I call the Just Distribution theory of punishment holds that the justification of punishment is that it rectifies the social distribution of benefits and burdens which has been upset by the offender. I argue that a recent version of this theory is no more viable than earlier versions. Like them, it fails in its avowed intention to deliver fundamental intuitions about crime and punishment. The root problem is its foundation in Hart's Principle of Fair Play, a foundation which, I argue, is inappropriate for a theory of punishment.

This paper focuses on two works of nineteenth-century feminism: Harriet Taylor's essay, Enfranchisement of Women, and John Stuart Mill's The Subjection of Women. My aim is to indicate that these texts are more radical than is usually allowed: far from being merely criticisms of the legal disabilities suffered by women in Victorian Britain, they are important moral texts which anticipate central themes within twentieth-century radical feminism. In particular, The Subjection of Women is not merely a liberal defence of legal equality; it is a positive statement of the inadequacy of ‘male” conceptions of reason and its powers. So understood, I shall argue, it coheres with Mill's other moral and political writings, and draws much of its persuasive power from the doctrines advanced in Harriet Taylor's Enfranchisement of Women.

The self-other asymmetry is a prominent and important feature of common-sense morality. It is also a feature that does not find a home in standard versions of act-utilitarianism. Theodore Sider has attempted to make a place for it by constructing a novel version of utilitarianism that incorporates the asymmetry into its framework. So far as I know, it is the best attempt to bring the two together. I argue, however, that Sider's ingenious attempt fails. I also offer a diagnosis that explains why no theory that remains recognizably act-utilitarian can successfully incorporate the asymmetry.

Interpretations of Mill's response to literature are often placed within a larger analysis of the development of his ethical thought. Such interpretations commonly seek to describe the importance to Mill's intellectual development of the episode in his personal experience, recollected in Chapter V of his Autobiography, which awakened him to the value of poetry and to the need for an active cultivation of personal feeling. The connection between the two is usually made by demonstrating how his mature ethical thought integrates ideas that were first brought home to him during this reaction against the logical rigour of his background and upbringing, a reaction that contrasts Mill's acceptance of the importance of personal culture and emotion with the scant regard afforded to these elements within Benthamite utilitarian thought. Thus the resolution of Mill's personal crisis is seen as shedding light on key limitations within the moral philosophy that he inherited from Bentham and from his father.