A new edition of T.H. Green's Prolegomena to Ethics (1883), a classic of modern philosophy, in which Green sets out his perfectionist ethical theory. In addition to the text of the Prolegomena itself, this edition provides an introductory essay, a bibliographical essay and an index. Brink's extended editorial introduction examines the context, themes and significance of Green's work and should be of special interest to readers working on the history of ethics, ethical theory, political philosophy and 19th-century philosophy.