In Germany, Otfried H&öffe has been a leading contributor to debates in moral, legal, political, and social philosophy for close to three decades. H&öffe's work (like that of his contemporary, J&ürgen Habermas), brings into relief the relevance of these German discussions to their counterparts in English-language circles. In this book, originally published in Germany in 1990 and expanded since, H&öffe proposes an extended and original interpretation of Kant&‚ philosophy of law, and social morality. H&öffe articulates his reading of Kant in the context of an account of modernity as a &"polyphonous project,&" in which the dominant themes of pluralism and empiricism are countered by the theme of categorically binding moral principles, such as human rights. Paying equal attention to the nuances of Kant's texts and the character of the philosophical issues in their own right, H&öffe ends up with a Kantianism that requires, rather than precludes, a moral anthropology and that questions the fashionable juxtaposition of Kant and Aristotle as exemplars of incompatible approaches to ethical and political thought.

Otfried Höffe is one of the foremost political philosophers in Europe today. In this major work, already a classic in continental Europe, he re-examines philosophical discourse on justice - from Classical Greece to the present day. Höffe confronts what he sees as the two major challenges to any theory of justice: the legal, positivist claim that there are no standards of justice external to legal systems; and the anarchist claim that justice demands the rejection and abolition of all legal and state systems. Höffe sets out to continue the 'philosophical project of modernity', the legitimation of human rights, and their guarantee by the state, while at the same time rehabilitating the classical theory of political justice represented by Plato and Aristotle. He questions the success of the positivists in avoiding extra-legal normative claims, and casts doubt on the plausibility of their criticism of the Natural Law tradition. Most anarchists, he argues, rely on an uncritical assumption that social institutions other than states and legal orders do not coerce. In Höffe's view, some coercion is unavoidable, and the grounds for its justification must be examined. Principles of justice will be those principles which define fundamental rights, and which must be enforced if rights are to be respected.

In this masterful work, both an illumination of Kant’s thought and an important contribution to contemporary legal and political theory, Arthur Ripstein gives a comprehensive yet accessible account of Kant’s political philosophy. Ripstein shows that Kant’s thought is organized around two central claims: first, that legal institutions are not simply responses to human limitations or circumstances; indeed the requirements of justice can be articulated without recourse to views about human inclinations and vulnerabilities. Second, Kant argues for a distinctive moral principle, which restricts the legitimate use of force to the creation of a system of equal freedom. Ripstein’s description of the unity and philosophical plausibility of this dimension of Kant’s thought will be a revelation to political and legal scholars. In addition to providing a clear and coherent statement of the most misunderstood of Kant’s ideas, Ripstein also shows that Kant’s views remain conceptually powerful and morally appealing today. Ripstein defends the idea of equal freedom by examining several substantive areas of law—private rights, constitutional law, police powers, and punishment—and by demonstrating the compelling advantages of the Kantian framework over competing approaches.

At the core of Kant's ethics lies the claim that if there is a supreme principle of morality then it cannot be a principle based on utilitarianism or Aristotelian perfectionism or the Ten Commandments. The only viable candidate for such a principle is the categorical imperative. This book is the most detailed investigation of this claim. It constructs a new, criterial reading of Kant's derivation of one version of the categorical imperative: the Formula of Universal Law. This reading shows this derivation to be far more compelling than contemporary philosophers tend to believe. It also reveals a novel approach to deriving another version of the categorical imperative, the Formula of Humanity, a principle widely considered to be the most attractive Kantian candidate for the supreme principle of morality. This book will be important not just for Kant scholars but for a broad swathe of students of philosophy.

A systematic guide to Kant's ethical work and the debates surrounding it, accessible to students and specialists alike.