A cornerstone of eighteenth-century thought, The Law of Nations is a treatise on the philosophy of human action, on the foundations of political communities, and on international law, and it influenced philosophers throughout the Enlightenment world. Wolff's method of illuminating truth is a step-by-step, logical examination of what is already known in order to explain what is unknown. In this new edition, Thomas Ahnert has revised and corrected the translation and added footnotes explaining Wolff's many references and technical terms.