Wittgenstein s philosophical achievement lies in the development of a new philosophical method rather than in the elaboration of a particular philosophical system. Dr Paul Johnston applies this innovative method to the central problems of moral philosophy: whether there can be truth in ethics, or what the meaning of objectivity might mean in the context of moral deliberation.

Wittgenstein and Moral Philosophy, first published in 1989, represents the first serious and rigorous attempt to apply Wittgenstein s method to ethics. The conclusions arrived at differ radically from...