One of the central theses of this book is that value is neither identical with nor reducible to psychological phenomena such as liking or disliking, preferring, evaluating, and valuing or disvaluing. He examines various kinds of value, the place of moral value within them, the ontological status of the bearers of value, and the relationship between morality and rationality. In clear writing he defines the issues he considers, sets out his position, and supports his views with original arguments that display his awareness of the history of moral philosophy.