- A Treatise of Human Nature
- Filosofía Fundamental, Tomo IV
- Poetics. English
- Sophist
- The Republic
- The Soul of Man under Socialism
- The Symposium
- A Selection from the Discourses of Epictetus with the Encheiridion
- Noites de insomnia, offerecidas a quem não póde dormir. Nº 9 (de 12)
- The Memorable Thoughts of Socrates
- Summa Theologica, Part II-II (Secunda Secundae)
- Another Study of Woman
- L'homme Qui Rit
- The Unseen World and Other Essays
- Laws
- The Critique of Practical Reason
- Civil Disobedience
- Ethics — Part 1
- Folk Lore
- The Ethics of Aristotle
- A Lie Never Justifiable
- Auguste Comte and Positivism
- Ethics — Part 3
- Ethics — Part 4
- The Young Woman's Guide
- The Philosophy of the Moral Feelings
- Habitações Operarias
- The Mechanism of the Human Voice
- A Treatise Concerning the Principles of Human Knowledge
- Petty Troubles of Married Life, Second Part
- Euthydemus
- An Enquiry Concerning Human Understanding
- Apology, Crito, and Phaedo of Socrates
- Gorgias
- The Prince
- A Philosophical Dictionary, Volume 10
- Notes from the Underground
- How To Behave: A Pocket Manual of Republican Etiquette, and Guide to Correct Personal Habits
- Miragaia
- The Friendships of Women
- Ethics — Part 5
- Flores do Campo
- The Ego and His Own
- Siouan Sociology
- Utilitarianism
- Ethics — Part 2
- Filosofía Fundamental, Tomo II
- The Physiology of Marriage, Part 2
- Voltareis ó Christo?
- A Philosophical Dictionary, Volume 1
- A Historical Survey of the Customs, Habits, & Present State of the Gypsies
- No Compromise with Slavery
- Chinese Literature
- Apology
- Advice to a Young Man upon First Going to Oxford
- Essays
- The Philosophy of Evolution
- The Spirit Proper to the Times.
- Beyond Good and Evil
- The Consolation of Philosophy
- Improvement of the Understanding
- Politics: A Treatise on Government
- How to Marry Well
- A Essay Towards a New Theory of Vision
- Study of a Woman
- Searchlights on Health: Light on Dark Corners
- Littérature et Philosophie mêlées
- Feuerbach: The roots of the socialist philosophy
- Categoriae. English
- Walden
- Manners, Customs, and Dress During the Middle Ages and During the Renaissance Period
- 道德经
- The Metaphysical Elements of Ethics
- Noites de insomnia, offerecidas a quem não póde dormir. Nº4 (de 12)
- Book of Wise Sayings
- El Criterio
- The Physical Life of Woman:
- Ancient and Modern Celebrated Freethinkers
- The Critique of Pure Reason
- Homer and Classical Philology
- The Map of Life
- 鬼谷子
- 封神演义
- Some Private Views
- Fundamental Principles of the Metaphysic of Morals
- Thus Spake Zarathustra
- The Destiny of Man