Pt. I. Moral Relativism / Gilbert Harman. 1. Moral Relativism. 2. Social Contracts. 3. Expressing Basic Disagreement. 4. Universality of Practical Reasons? 5. Judgments about Outsiders -- Pt. II. Moral Objectivity / Judith Jarvis Thomson. 6. Epistemological Arguments for Moral Scepticism. 7. Emotivism. 8. Evaluatives and Directives -- Pt. III. Responses. 9. Harman's Response to Thomson's Part II. 10. Thomson's Response to Harman's Part I