- The Ethics of Aristotle
- Ethics — Part 5
- Feuerbach: The roots of the socialist philosophy
- The Existence of God
- Study of a Woman
- Myths and myth-makers
- A Philosophical Dictionary, Volume 4
- Ethics — Part 4
- 道德经
- Book of Wise Sayings
- The Destiny of Man
- A Philosophical Dictionary, Volume 10
- Filosofía Fundamental, Tomo IV
- Sophist
- Letters to His Son on the Art of Becoming a Man of the World and a Gentleman, 1751
- Lessons in Life, for All Who Will Read Them
- The Dark House
- The Map of Life
- Modern Women and What is Said of Them
- Filosofía Fundamental, Tomo I
- The Physiology of Marriage, Part 2
- Searchlights on Health: Light on Dark Corners
- A Domestic Problem : Work and Culture in the Household
- Shorter Prose Pieces
- Selbstbetrachtungen
- The Selections from the Principles of Philosophy
- Beyond Good and Evil
- Philosophie de la Liberté (Tome I)
- The Critique of Pure Reason
- Seekers after God
- Ancient and Modern Celebrated Freethinkers
- The Philosophy of the Moral Feelings
- Improvement of the Understanding
- Ethics — Part 2
- Ethics — Part 2
- Categoriae. English
- Statesman
- Fundamental Principles of the Metaphysic of Morals
- Ainsi Parlait Zarathoustra
- The Metaphysical Elements of Ethics
- The English Utilitarians, Volume II (of 3)
- A Treatise of Human Nature
- The Soul of Man under Socialism
- 道德經
- The Ethics of Drink and Other Social Questions
- Charmides
- 菜根谭
- The Golden Sayings of Epictetus
- Folk Lore
- Crito
- A Lie Never Justifiable
- 論語
- Politics: A Treatise on Government
- The Memorable Thoughts of Socrates
- 论语
- Ethics — Part 1
- The Philosophy of Spinoza
- A Treatise Concerning the Principles of Human Knowledge
- Thus Spake Zarathustra
- Notes from the Underground
- El Criterio
- The Mechanism of the Human Voice
- The Philosophy of Evolution
- Poetics. English
- The Ego and His Own
- Protagoras
- The Consolation of Philosophy
- Another Study of Woman
- How to Marry Well
- A Philosophical Dictionary, Volume 1
- Essays
- Apology
- 鬼谷子
- Laws
- Essays
- The Young Woman's Guide
- Ethics — Part 3
- Civil Disobedience
- 菜根譚
- Novelas de Voltaire — Tomo Primero
- Utilitarianism
- Apology, Crito, and Phaedo of Socrates
- Thoughts out of Season Part I
- The Child at Home
- The Cannibal Islands
- An Enquiry Concerning Human Understanding
- Cratylus
- The Prince
- How To Behave: A Pocket Manual of Republican Etiquette, and Guide to Correct Personal Habits
- Homer and Classical Philology
- The Ruins, or, Meditation on the Revolutions of Empires and the Law of Nature
- Plato and Platonism
- The Essays of Arthur Schopenhauer; Religion, a Dialogue, Etc.
- Old-Fashioned Ethics and Common-Sense Metaphysics
- The Republic
- Filosofía Fundamental, Tomo II
- Secret Societies
- L'homme Qui Rit
- Chinese Literature
- Vaninka