- Walden
- A Philological Essay Concerning the Pygmies of the Ancients
- The Ethics of Aristotle
- A Reply to Dr. Lightfoot's Essays
- A Domestic Problem : Work and Culture in the Household
- The Conflict with Slavery and Others, Complete, Volume VII,
- An American Girl Abroad
- How To Behave: A Pocket Manual of Republican Etiquette, and Guide to Correct Personal Habits
- Feuerbach: The roots of the socialist philosophy
- Homer and Classical Philology
- Stray Pearls
- History, Manners, and Customs of the North American Indians
- 六韬
- No Compromise with Slavery
- Apology, Crito, and Phaedo of Socrates
- Study of a Woman
- A Philosophical Dictionary, Volume 4
- Charmides
- An Enquiry Concerning the Principles of Taste, and of the Origin of our Ideas of Beauty, etc.
- The Soul of Man under Socialism
- Secret Societies
- Aboriginal American Authors
- An Appeal in Favor of that Class of Americans Called Africans
- Ancient and Modern Celebrated Freethinkers
- The Metaphysical Elements of Ethics
- Beyond Good and Evil
- The Golden Sayings of Epictetus
- The Young Woman's Guide
- Ishmael
- The Critique of Pure Reason
- Among My Books
- Catéchisme libertin
- The Child at Home
- An Enquiry Concerning Human Understanding
- An Enquiry Concerning Human Understanding
- Essays
- Seekers after God
- The English Utilitarians, Volume II (of 3)
- The Conflict with Slavery, Part 1, from Volume VII,
- De Amicitia, Scipio's Dream
- More Bywords
- Aesthetical Essays of Frederich Schiller
- A Selection from the Discourses of Epictetus with the Encheiridion
- Apology
- The Physiology of Marriage, Part 2
- The Philosophy of the Conditioned
- Another Study of Woman
- Poetics. English
- Laws
- Shorter Prose Pieces
- A Saudade
- Träume eines Geistersehers, erläutert durch Träume der Metaphysik
- Essays
- The Existence of God
- Slavery Ordained of God
- Social Rights and Duties, Volume I (of 2)
- A Philosophical Dictionary, Volume 1
- The Indolence of the Filipino
- Thus Spake Zarathustra
- Dialogues Concerning Natural Religion
- Notes from the Underground
- Algonquin Legends of New England
- Kritik der reinen Vernunft
- A Treatise of Human Nature
- The English Utilitarians, Volume I.
- De profundis
- The Prince
- 六韜
- Antoinette de Mirecourt
- Petty Troubles of Married Life, Second Part
- An Essay on the Principle of Population
- Politics: A Treatise on Government
- The Critique of Practical Reason
- Civil Disobedience
- A Lie Never Justifiable
- Native Races and the War
- The Republic
- The Future of the Colored Race in America
- 列女传
- A Historical Survey of the Customs, Habits, & Present State of the Gypsies
- The Philosophy of the Moral Feelings
- A Young Hero
- Utilitarianism
- Abélard, Tome II
- American Woman's Home
- Siouan Sociology
- Advice to a Young Man upon First Going to Oxford
- A philosophia da natureza dos naturalistas
- Essays of Schopenhauer
- The Holy war, made by King Shaddai upon Diabolus, for the regaining of the metropolis of the world; ...
- 道德经
- Book of Wise Sayings
- Catherine De Medici
- A Essay Towards a New Theory of Vision
- The Map of Life
- Flores do Campo
- Le positivisme anglais
- An Attic Philosopher in Paris — Volume 3
- The Three Brides
- How to Marry Well