Discourse on Method and Meditations on First Philosophy (Hackett Classics)
Plato Five Dialogues (Hackett Readings in Philosophy)
Spinoza: A Very Short Introduction (Very Short Introductions)
David Hume Collection: A Treatise of Human Nature, An Enquiry Concerning Human Understanding, An Enquiry Concerning the Principles of Morals, Dialogues Concerning Natural Religion.
Spinoza: Theological-Political Treatise (Cambridge Texts in the History of Philosophy)