Scepticism about morality is as old as morality itself. Philosophers have attacked the singular institution of morality, but have these sceptics correctly identified their target? In this book a descriptive metaphysics of morals is presented, revealing how philosophical critics have consistently misidentified the institution of morality. Mark Platts' first book Ways of Meaning argued within the context of the philosophy of language that a realist account of moral thought was possible; Moral Realities defends the same possibility from the perspective of the philosophy of psychology. Platts...