- The Metaphysical Elements of Ethics
- Ancient and Modern Celebrated Freethinkers
- The Golden Sayings of Epictetus
- Letters to His Son on the Art of Becoming a Man of the World and a Gentleman, 1753-54
- The Consolation of Philosophy
- The Critique of Pure Reason
- The Friendships of Women
- Seekers after God
- An Enquiry Concerning Human Understanding
- Criminal Sociology
- The Faith of Our Fathers
- Statesman
- Apology, Crito, and Phaedo of Socrates
- How To Behave: A Pocket Manual of Republican Etiquette, and Guide to Correct Personal Habits
- The Evolution of Man — Volume 1
- How to Observe
- The Ruins, or, Meditation on the Revolutions of Empires and the Law of Nature
- L'homme Qui Rit
- A Critical Examination of Socialism
- A New Conscience and an Ancient Evil
- The Critique of Practical Reason
- History of Human Society
- Ethics in Service
- The Soul of Man under Socialism
- The Positive School of Criminology
- Littérature et Philosophie mêlées
- The Ethics of Aristotle
- Vindication of the Rights of Woman
- Notes from the Underground
- Women's Wild Oats
- Politics: A Treatise on Government
- A Domestic Problem : Work and Culture in the Household
- Esprit des lois
- Ethics — Part 1
- Ethics — Part 1
- Study of a Woman
- A Man's Value to Society
- Ethica. English
- On Being Human
- Initiation into Philosophy
- Lessons in Life, for All Who Will Read Them
- Crime: Its Cause and Treatment
- The Destiny of Man
- Book of Wise Sayings
- From Ritual to Romance
- The Ego and His Own
- The Map of Life
- Levels of Living
- A Essay Towards a New Theory of Vision
- The Unseen World and Other Essays
- How to Marry Well
- The Memorable Thoughts of Socrates
- Beyond Good and Evil
- The Young Woman's Guide
- The Law and the Word
- The Philosophy of the Moral Feelings
- Utilitarianism
- Moral Philosophy
- Laws
- Essays
- The Selections from the Principles of Philosophy
- Improvement of the Understanding
- A Short History of Greek Philosophy
- When a Man Comes to Himself
- American Negro Slavery
- Atheism in Pagan Antiquity
- Black Rebellion
- The Prince
- A Philosophical Dictionary, Volume 4
- Chinese Literature
- The Philosophy of Despair
- The Future of the American Negro
- The Basis of Morality
- Youth and Sex
- Civil Disobedience
- The Republic
- Men, Women, and Gods
- Secret Societies
- Auguste Comte and Positivism
- A Philosophical Dictionary, Volume 10
- The Royal Wedding - Official Souvenir Programme
- A Lie Never Justifiable
- Thus Spake Zarathustra
- A System of Logic: Ratiocinative and Inductive
- A Treatise of Human Nature
- Liberalism
- Democracy and Social Ethics
- A Treatise Concerning the Principles of Human Knowledge
- The Investment of Influence
- The Heart of the New Thought
- A Philosophical Dictionary, Volume 1
- Fundamental Principles of the Metaphysic of Morals
- The Physiology of Marriage, Part 2
- Apology
- Another Study of Woman
- The Philosophy of Evolution
- Poetics. English
- Discours de la méthode
- Essays
- The Existence of God