Stephen Darwall is the John Dewey Collegiate Professor of Philosophy at the University of Michigan. He has written widely on moral philosophy and its history, and is the author of Impartial Reason (1983), The British Moralists and the Internal ‘Ought’: 1640–1740 (1995), Philosophical Ethics (1998), and Welfare and Rational Care (2002). He is the editor, with Allan Gibbard and Peter Railton, of Moral Discourse and Practice (1997).