What is law? What is it for? How should judges decide novel cases when the statutes and earlier decisions provide no clear answer? Do judges make up new law in such cases, or is there some higher law in which they discover the correct answer? Must everyone always obey the law? If not, when is a citizen morally free to disobey? A renowned philosopher enters the debate surrounding these questions. Clearly and forcefully, Ronald Dworkin argues against the 'ruling' theory in Anglo-American law-legal positivism and economic utilitarianism and asserts that individuals have legal rights beyond those explicitly laid down and that they have political and moral rights against the state that are prior to the welfare of the majority. The author's theory of law and the moral conception of individual rights that underlies it have already made him one of the most influential philosophers working in this area.