An Enquiry Concerning the Principles of Morals (Hackett Classics)

Grounding for the Metaphysics of Morals: with On a Supposed Right to Lie because of Philanthropic Concerns (Hackett Classics)

Utilitarianism

Kant: Groundwork of the Metaphysics of Morals (Cambridge Texts in the History of Philosophy)

Nicomachean Ethics

Three Challenges to Ethics: Environmentalism, Feminism, and Multiculturalism

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)

Rousseau: The Basic Political Writings: Discourse on the Sciences and the Arts, Discourse on the Origin of Inequality, Discourse on Political Economy, ... Contract, The State of War (Hackett Classics)

How to Get the Most Out of Philosophy

On the Genealogy of Morals and Ecce Homo

On Liberty, Utilitarianism and Other Essays (Oxford World's Classics)