1. Plato, Books I, IV, IX; Crito
2. Aristotle, Book III; Book V
3. Aquinas, I-II, Questions 90–97
4. Hobbes, , Part II Chapter 26
5. Locke, , Chapter 11
6. Montesquieu, , Books I, XI, XII, XXIX
7. Rousseau, , Book II Chapters 6–12
8. Kant, , Doctrine of Right
9. Hegel, , §211–218
10. Marx, Critique of Hegel's Philosophy of Right; On the Jewish Question