Introduction by E. A. Burtt. -- Bibliography (p. xxiii-xxiv) -- Bacon, Francis. The great instauration. Novum organum -- Hobbes, Thomas. Leviathan -- Locke, John. An essay concerning human understanding. An essay concerning the true original, extent, and end of civil government -- Berkeley, George. A treatise concerning the principles of human knowledge -- Hume, David. An enquiry concerning human understanding. Dialogues concerning natural religion -- Gay, John. Concerning the fundamental principle of virtue or morality -- Bentham, Jeremy. An introduction to the principles of morals and legislation -- Mill, James. Government-- Mill, J. S. Utilitarianism. On liberty.