1. Plato, , Books II, IV, VIII; , Books V, XI
2. Aristotle, , Books I, VII; , Book IV
3. Aquinas, , I-II, Q. 2; II-II, Q. 77-78
4. Locke, , Chapter V
5. Montesquieu, , Books VII, XX-XXI
6. Rousseau,
7. Adam Smith, , Books I-II
8. Hegel, , Part III, "Civil Society"
9. Mill, ;
10. Marx, , Volume I;