Otfried Höffe is Professor of Philosophy at Universität Tübingen and permanent visiting Professor of the Philosophy of Law at the University of St Gallen. He is also doctor honoris causa of the University of Porto Allegre (PUCRS), Fellow of the Heidelberger Akademie der Wissenschaften, and Fellow of the German Academy of Sciences Leopoldina. He is the author of Immanuel Kant, Political Justice, Categorical Principles of Law, Aristotle, Kant's Cosmopolitan Theory of Law and Peace, Democracy in an Age of Globalisation, and many other books in German. He has coedited Hegel on Ethics and Politics, edited Lexikon der Ethik and Lesebuch zur Ethik, and is editor of Zeitschrift für philosophische Forschung, the series Denker, and Klassiker Auslegen. With Robert Pippin, he is co-editor of the Cambridge series The German Philosophical Tradition.

1. Introduction Karl Ameriks and Otfried Höffe; Part I. Early Conceptions: 2. Hutcheson and Kant Dieter Henrich; 3. The theory of obligation in Wolff, Baumgarten, and the early Kant Clemens Schwaiger; Part II. Groundwork of the Metaphysics of Morals: 4. What is the purpose of a metaphysics of morals? Some observations on the preface to the groundwork of the metaphysics of morals Ludwig Siep; 5. The transition from common rational to philosophical rational moral knowledge in the groundwork Dieter Schönecker; 6. Reason practical in its own right Gerold Prauss; 7. Kant's justification of the role of maxims in ethics Michael Albrecht; Part III. Critique of Practical Reason: 8. The form of the maxim as the determining ground of the will (critique of practical reason, §§ 4-6, 27-30) Otfried Höffe; 9. On the concept of an object of pure practical reason (chapter two of the analytic of practical reason) Annemarie Pieper; 10. The dialectic of pure practical reason in the second critique (cprr 107-121) Eckart Förster; 11. The postulates of pure practical reason Friedo Ricken; Part IV. Legal and Political Philosophy: 12. On how to acquire something external, and especially on the right to things (a commentary on the metaphysics of morals §§ 10-17) Kristian Kühl; 13. 'The civil constitution in a republican state shall be a republican one' Wolfgang Kersting; 14. Commentary on Kant's treatment of constitutional right (metaphysics of morals II: general remark A, §§ 51-52; conclusion, appendix) Bernd Ludwig; 15. Refusing sovereign power - the relation between politics and philosophy in the modern age Volker Gerhardt.