At the centre of our ethical thought stands the human being. Facts about human nature determine the shape of ethical concepts in a variety of ways, and our pre-rational animal nature forms the basis of notions to do with rationality, virtue, and happiness, among other things. Nature, Reason, and the Good Life examines these themes while also arguing for the critical importance of language: only by attending to the social and empirical character of actual language use can we make headway with a number of problems in ethics. Thus what counts as a good or bad reason for action depends on the...