This volume is a revised, enlarged, and broadened version of Gert's classic 1970 book, The Moral Rules. Advocating an approach he terms "morality as impartial rationality," Gert here presents a full discussion of his moral theory, adding a wealth of new illuminating detail to his analysis of the concepts--rationality/irrationality, good/evil, and impartiality--by which he defines morality. He constructs a "moral system" that includes rules prohibiting the kinds of actions that cause evil, procedures for determining when violation of the rules is (...) permitted, and ideals which encourage actions that prevent or relieve suffering. To be valid, Gert argues, any such system must be "a public system that applies to all rational persons." The book concludes with a discussion of medical ethics, demonstrating the link between moral theory and its application to real moral problems. (shrink)