Discourse on Metaphysics and Other Essays: Discourse on Metaphysics; On the Ultimate Origination of Things; Preface to the New Essays; The Monadology (Hackett Classics)

An Enquiry Concerning Human Understanding, 2nd Edition (Annotated)) (Hackett Classics)

Essay Concerning Human Understanding (Hackett Classics)

Leibniz: Philosophical Essays (Hackett Classics)

Prolegomena to Any Future Metaphysics: and the Letter to Marcus Herz, February 1772 (Hackett Classics)

An Enquiry Concerning Human Understanding: with Hume's Abstract of A Treatise of Human Nature and A Letter from a Gentleman to His Friend in Edinburgh (Hackett Classics)

Ethics

Discourse on Method and Meditations on First Philosophy (Hackett Classics)

Principles of Human Knowledge and Three Dialogues (Oxford World's Classics)

Utilitarianism, 2nd Edition (Annotated)

Ethics: with The Treatise on the Emendation of the Intellect and Selected Letters (Hackett Classics)