For more than thirty years, philosopher Bernard Gert has been developing and refining his distinctive and comprehensive moral theory. His classic work, The Moral Rules: A New Rational Foundation for Morality, was first published in 1970. In 1988, Oxford published a fourth revision titled Morality: A New Justification of the Moral Rules. In this final revision, Gert has produced the fullest and most sophisticated account of this influential theoretical...