- Laws
- Improvement of the Understanding
- How to Marry Well
- Categoriae. English
- Another Study of Woman
- Essays
- Advice to a Young Man upon First Going to Oxford
- Civil Disobedience
- Trials and Confessions of a Housekeeper
- The Prince
- Essays of Schopenhauer
- Thoughts out of Season Part I
- A Treatise of Human Nature
- Kritik der reinen Vernunft
- The Republic
- Esprit des lois
- Ethics — Part 2
- Notes from the Underground
- The Philosophy of the Moral Feelings
- Plato and Platonism
- The Child at Home
- The Young Woman's Guide
- The Philosophy of Spinoza
- A Historical Survey of the Customs, Habits, & Present State of the Gypsies
- Dialogues Concerning Natural Religion
- Experiments and Considerations Touching Colours (1664)
- Secret Societies
- Ethics — Part 1
- Politics: A Treatise on Government
- The Critique of Practical Reason
- Ethica. English
- An Enquiry Concerning the Principles of Taste, and of the Origin of our Ideas of Beauty, etc.
- Littérature et Philosophie mêlées
- The Ethics of Aristotle
- The Ethics of Aristotle
- A Essay Towards a New Theory of Vision
- Chinese Literature
- Study of a Woman
- Book of Wise Sayings
- The English Utilitarians, Volume I.
- The Destiny of Man
- De l'importance des livres de raison
- Protagoras
- The Physical Life of Woman:
- Autour de la table
- The Consolation of Philosophy
- Utilitarianism
- The Map of Life
- A Domestic Problem : Work and Culture in the Household
- The Ego and His Own
- The Inner Life, Part 3, from Volume VII,
- Letters to His Son on the Art of Becoming a Man of the World and a Gentleman, 1751
- The Unseen World and Other Essays
- Les Femmes de la Révolution
- The Memorable Thoughts of Socrates
- The Three Brides
- A Saudade
- L'homme Qui Rit
- Novelas de Voltaire — Tomo Primero
- The Critique of Pure Reason
- The Ethics of Drink and Other Social Questions
- Seekers after God
- The Metaphysical Elements of Ethics
- Old-Fashioned Ethics and Common-Sense Metaphysics
- Statesman
- The Friendships of Women
- Fundamental Principles of the Metaphysic of Morals
- Lessons in Life, for All Who Will Read Them
- Sophist
- Apology, Crito, and Phaedo of Socrates
- How To Behave: A Pocket Manual of Republican Etiquette, and Guide to Correct Personal Habits
- The Soul of Man under Socialism
- An Enquiry Concerning Human Understanding
- A Young Hero
- Petty Troubles of Married Life, Second Part
- The Golden Sayings of Epictetus
- Crito
- Letters on England
- An American Girl Abroad
- Myths and myth-makers
- A Lie Never Justifiable
- Feuerbach: The roots of the socialist philosophy
- A Reply to Dr. Lightfoot's Essays
- Thus Spake Zarathustra
- A Philosophical Dictionary, Volume 10
- The Mechanism of the Human Voice
- A Treatise Concerning the Principles of Human Knowledge
- Phaedo
- The Dark House
- The Philosophy of Evolution
- Poetics. English
- Ancient and Modern Celebrated Freethinkers
- A Philosophical Dictionary, Volume 1
- The Physiology of Marriage, Part 2
- Beyond Good and Evil
- Walden
- Apology
- The Theological Tractates and The Consolation of Philosophy
- Essays
- Selbstbetrachtungen