It is difficult to exaggerate the extent to which Kant has influenced contemporary ethics. Whether or not one is sympathetic to his moral theory, one cannot ignore it, or the various ethical theories which draw their inspiration from it. Debates which have centred on Kantian themes include debates about whether moral requirements are categorical imperatives, whether they have an overriding authority, whether the various moral judgements we make can be codified, the role of duty in moral motivation, whether there are moral actions which are beyond the call of duty, the relation of morality to autonomy, and the very nature of moral judgement. The pervasiveness of Kant's influence makes it very difficult to write anything comprehensive on his relation to contemporary ethics, and I do not intend to attempt such an ambitious task here. Rather, in what follows I shall focus mainly on three distinctive features of Kant's ethics, which correspond roughly to the three chapters of the Groundwork.