"Sidgwick's Outlines of the History of Ethics is one of those rare things: a reliable history of the subject by a distinguished moral philosopher who was able to interpret in readable form the ideas of his predecessors. It is a pleasure to see this book in a paperback edition." - Morton White, Professor of Philosophy, Harvard University
". . a masterpiece oi clearness and compression. It has the unique advantage of having been written by a man who was himself one of the greatest of moral philosophers. Sidgwick had a sure eye for what was essential in each system, and he puts these essentials in such easy and flowing English that one hardly realizes in the reading how much thought and insight went into the writing. The student of . philosophy will find here an account of the highest technical competence; and the general reader, though his mind will be pleasantly stretched, will find no needless roadblocks in his way." - Brand Blanshard, Sterling Professor of Philosophy, Yale University