Part I Moral Reasons; Chapter 1 R. M. Hare: Deductive Arguments and Rationality; Chapter 2 Mrs. Foot: Moral and Empirical Criteria; Chapter 3 The Common Assumption; Chapter 4 The Diversity of Moral Standards; Chapter 5 The Rebel and Moral Traditions; Part II Moral Arguments; Chapter 6 ‘Is’and ‘Ought’; Chapter 7 Moral Viewpoints and Our Ideas of Reality; Chapter 8 Facts and ‘Pure’ Facts; Chapter 9 The Possibility of Conflicting Values; Chapter 10 Agreement and Moral Communication; conclusion Conclusion;