| Ch. 1 | Introduction | 3 |
| Ch. 2 | Kant versus Hegel | 19 |
| Kant's Principle Conception | 21 |
| Hegel's Criticism of Kant's Principle Conception | 30 |
| Hegel on the Importance of Social Practice | 34 |
| Implications | 43 |
| Kant or Hegel: Principles without Practice or Principles Immanent in Practice? | 48 |
| Ch. 3 | Promises | 50 |
| The Problem | 50 |
| Scanlon's Example | 54 |
| Principle Conceptions of Promising | 58 |
| Scanlon's Principles M and F | 83 |
| Conclusion: Practices and the Obligation to Keep Promises | 90 |
| Ch. 4 | Contracts | 96 |
| Problems in Contract Law | 96 |
| Principles | 104 |
| Practices and Principles in Contract Law | 133 |
| Ch. 5 | Privacy | 137 |
| The Problem | 137 |
| Determining the Reasonableness of Expectations of Privacy: Practice or Principles? | 144 |
| Incorporating Practice and Principle in Fourth Amendment Reasonable-Expectation-of-Privacy Analysis: The Mischance Principle Applied | 172 |
| Ch. 6 | Practices, Principles, and Contemporary Political Theory | 191 |
| The Role of Social Practice in Ethical and Legal Judging | 193 |
| Contemporary Political Theorists on the Role of Social Practice | 199 |
| Practices and Principles | 204 |
| Practices, Principles, and the Liberal-Communication Debate | 209 |
| Practices, Principles, and the Relativism-Universalism Debate | 217 |
| Bibliography | 223 |
| Index of Cases | 235 |
| General Index | 237 |