The most complete edition yet published of Wittgenstein s 1929 lecture includes a never-before published first draft and makes fresh claims for its significance in Wittgenstein s oeuvre. * The first available print publication of all known drafts of Wittgenstein s Lecture on Ethics * Includes a previously unrecognized first draft of the lecture and new transcriptions of all drafts * Transcriptions preserve the philosopher s emendations thus showing the development of the ideas in the lecture * Proposes a different draft as the version read by Wittgenstein in his 1929 lecture * Includes introductory essays on the origins of the material and on its meaning, content, and importance