In this volume, some of today's most distinguished philosophers survey the whole field of ethics, from its origins, through the great ethical traditions, to theories of how we ought to live, arguments about specific ethical issues, and the nature of ethics itself. The book can be read straight through from beginning to end; yet the inclusion of a multi-layered index, coupled with a descriptive outline of contents and bibliographies of relevant literature, means that the volume also serves as a work of reference, both for those coming afresh to the study of ethics and for readers already familiar with the subject.