- The Existence of God
- A Man's Value to Society
- Feuerbach: The roots of the socialist philosophy
- Parmenides
- A Philosophical Dictionary, Volume 10
- The Destiny of Man
- A Philosophical Dictionary, Volume 4
- The Soul of Man under Socialism
- The Physiology of Marriage, Part 2
- Walden
- A Short History of Greek Philosophy
- Lessons in Life, for All Who Will Read Them
- Sophist
- Liberalism
- How To Behave: A Pocket Manual of Republican Etiquette, and Guide to Correct Personal Habits
- Apology, Crito, and Phaedo of Socrates
- Statesman
- Indian Story and Song
- Ethics — Part 3
- The Ethics of Aristotle
- Ion
- Democracy and Social Ethics
- Manual of Egyptian Archaeology and Guide to the Study of Antiquities in Egypt
- Hinduism and Buddhism, An Historical Sketch, Vol. 1
- Criminal Sociology
- Essays of Schopenhauer
- The Child at Home
- Utilitarianism
- Moral Philosophy
- How to Marry Well
- An Enquiry Concerning Human Understanding
- The Young Woman's Guide
- Levels of Living
- How to Observe
- How to Observe
- The Map of Life
- The Ego and His Own
- Homer and Classical Philology
- The Republic
- Book of Wise Sayings
- Thoughts out of Season Part I
- Cratylus
- Chinese Literature
- L'homme Qui Rit
- The Physical Life of Woman:
- Phaedrus
- The Basis of Morality
- Study of a Woman
- A Lie Never Justifiable
- Politics: A Treatise on Government
- The Memorable Thoughts of Socrates
- Morals in Trade and Commerce
- The Critique of Practical Reason
- Thus Spake Zarathustra
- The Indolence of the Filipino
- Notes from the Underground
- Gorgias
- A Essay Towards a New Theory of Vision
- The Royal Wedding - Official Souvenir Programme
- Poetics. English
- Youth and Sex
- The Philosophy of Evolution
- A Philosophical Dictionary, Volume 1
- The Prince
- Essays
- The Unseen World and Other Essays
- Crime: Its Cause and Treatment
- Apology
- Another Study of Woman
- The Consolation of Philosophy
- The Investment of Influence
- Ethics — Part 1
- On Being Human
- The Critique of Pure Reason
- Indian Games and Dances with Native Songs
- Laws
- Essays
- Meno
- Children’s Rights
- Beyond Good and Evil
- Crito
- The Golden Sayings of Epictetus
- Ethics — Part 2
- Myth and Science
- The Metaphysical Elements of Ethics
- The Positive School of Criminology
- Theaetetus
- Our Fathers Have Told Us
- The Philosophy of the Moral Feelings
- The Law and the Word
- History of Human Society
- Fundamental Principles of the Metaphysic of Morals
- Ainsi Parlait Zarathoustra
- Myths and myth-makers
- Charmides
- Categoriae. English
- When a Man Comes to Himself
- The Evolution of Man — Volume 1
- The Heart of the New Thought
- A Treatise of Human Nature