Introduction Thomas Bénatouïl; 1. Cicero's philosophical writing in its intellectual context Claudia Moatti; 2. The Ciceronian dialogue Charles Brittain and Peter Osorio; 3. Philosophy in Cicero's letters Sophie Aubert-Baillot; 4. Philosophy in Cicero's speeches Catherine Steel; 5. Cicero and the creation of a Latin philosophical vocabulary Carlos Lévy; 6. Cicero and Plato Malcolm Schofield; 7. Cicero's academic skepticism Tobias Reinhardt; 8. Cosmology, theology, and religion Clara Auvray-Assayas; 9. Determinism, fate, and responsibility Elisabeth Begemann; 10. Cicero on the emotions and the soul Sean McConnell; 11. Ethical theory and the good life Raphael Woolf; 12. Nature and social ethics Gretchen Reydams-Schils; 13. Philosophy, rhetoric, and politics Gary Remer; 14. Cicero's republicanism Walter Nicgorski; 15. Empire, just wars, and cosmopolitanism Jed W. Atkins; 16. Cicero and Augustine Anne-Isabelle Bouton-Touboulic; 17. Cicero and eighteenth-century political thought Daniel J. Kapust; 18. Cicero and twenty-first century political philosophy Martha C. Nussbaum.