Wittgenstein's philosophical achievement lies in the development of a new philosophical method rather than in the elaboration of a particular system. His method involves an approach to the examination of philosophical problems, a method which Paul Johnston applies in this book to the central problems of moral philosophy - questions such as whether there can be truth in ethics, or what objectivity might mean in this context. The text also attempts to shed new light both on Wittgenstein's philosophy of morals and on his entire oeuvre. Johnston argues for a reassessment of contemporary moral philosophy, showing that the conclusions generated by the application of Wittgenstein's method to moral philosophy differ radically from those that dominate modern discussions of ethics.