With a book as wide ranging and insightful as Barry's Justice as Impartiality, it is perhaps a little churlish to criticize it for paying insufficient attention to one's own particular interests. That said, in what follows I am going to do just that and claim that in an important sense Barry does not take utilitarianism seriously. Utilitarianism does receive some discussion in Barry's book, and in an important section which I will discuss he even appears to concede that utilitarianism provides a rival though ultimately inadequate theory of justice. Nevertheless, utilitarianism is not considered a rival to ‘justice as impartiality’ in the way that ‘justice as mutual advantage’ and ‘justice as reciprocity’ are. One response, and perhaps the only adequate response, would be to construct a rival utilitarian theory. I cannot provide such a theory in this paper, and I certainly would be very cautious about claiming that I could provide such a theory elsewhere. What I want to suggest is that utilitarianism is a genuine third theory to contrast with ‘justice as mutual advantage’ and ‘justice as impartiality’ – ‘justice as reciprocity’ being merely a hybrid of ‘justice as mutual advantage’, at least as Barry presents it (pp. 46–51). I also want to argue that it poses a more significant challenge to a contractualist theory such as Barry's than his discussion of utilitarianism reveals.

One aspect of the intellectual changes taking place in China in the late nineteenth and early twentieth centuries was the emergence of utilitarian ideas. Although it may be useful to think of modern Chinese thought from the perspective of the emergence of social Darwinism and nationalism, it is significant that the country's most progressive scholars at the turn of thecentury derived their inspiration from utilitarianism. Utilitarianism was accepted as a weapon with which to challenge traditional social, political, and cultural ideas, and to justify social and political reforms.

As the author of Justice as Impartiality, I am not ashamed to admit that I was delighted by the liveliness of the discussion generated by it at the meeting on which this symposium is based. I am likewise grateful to the six authors for finding the book worthy of the careful attention that they have bestowed on it. Between them, the symposiasts take up many more points than I can cover in this response. I shall therefore focus on some themes that cluster round the contractual device that I associate with the notion of justice as impartiality. Is it necessary? If it is not necessary is it nevertheless useful? Within an overall contractual framework is the form of contract that I propose uniquely justifiable? And does the form of contract that I defend generate the implications that I claim for it?