1. Shaver, Robert . “Grotius on Scepticism and Self-Interest”. Archiv für Geschichte der Philosophie 78 (1996):.
2. Shaftesbury, Anthony Ashley Cooper, Earl . “An Inquiry concerning Virtue or Merit” [1699], in Characteristicks of Men, Manners, Opinions, Times (ed. Robertson ), vol. 1.
3. Clarke, Samuel . A Demonstration of the Being and Attributes of God: More Particularly in Answer to Mr. Hobbs, Spinoza, and their Followers. London, 1705; facsim. Stuttgart-Ba. Cannstatt, 1964.
4. Kant, Immanuel . Kritik der praktischen Vernunft (1788), in Ak, vol. 5.
5. Cumberland, Richard . A Treatise of the Laws of Nature, trans. J. Maxwell . London, 1727; ed. J. Parkin , Indianapolis IN, 2005.