This book explores the relationship between the law and pervasive and persistent reasonable disagreement about justice. It reveals the central moral function and creative force of reasonable disagreement in and about the law and shows why and how lawyers and legal philosophers should take reasonable conflict more seriously. Even though the law should be regarded as the primary mode of settlement of our moral conflicts, it can, and should, also be the object and the forum of further moral conflicts. There is more to the rule of law than convergence and determinacy and it is important therefore to question the importance of agreement in law and politics. By addressing in detail issues pertaining to the nature and sources of disagreement, its extent and significance, as well as the procedural, institutional and substantive responses to disagreement in the law and their legitimacy, this book suggests the value of a comprehensive approach to thinking about conflict, which until recently has been analysed in a compartmentalized way.