- Crito
- Ancient and Modern Celebrated Freethinkers
- The Metaphysical Elements of Ethics
- The Golden Sayings of Epictetus
- Essays
- Meno
- Phaedo
- The Consolation of Philosophy
- L'homme Qui Rit
- A Critical Examination of Socialism
- The Philosophy of Evolution
- Fundamental Principles of the Metaphysic of Morals
- Apology
- Homer and Classical Philology
- A Philosophical Dictionary, Volume 1
- The Critique of Pure Reason
- A Essay Towards a New Theory of Vision
- The Map of Life
- Varieties of Religious Experience, a Study in Human Nature
- The Ego and His Own
- Walden
- The Royal Wedding - Official Souvenir Programme
- The Existence of God
- The Investment of Influence
- The Physical Life of Woman:
- Politics: A Treatise on Government
- The Critique of Practical Reason
- Le féminisme français I
- A Man's Value to Society
- Democracy and Social Ethics
- Initiation into Philosophy
- Poetics. English
- Chinese Literature
- Apology, Crito, and Phaedo of Socrates
- Apology, Crito, and Phaedo of Socrates
- The Prince
- How To Behave: A Pocket Manual of Republican Etiquette, and Guide to Correct Personal Habits
- Youth and Sex
- Criminal Sociology
- Civil Disobedience
- A Short History of Greek Philosophy
- Liberalism
- The Republic
- A Lie Never Justifiable
- The Child at Home
- How to Observe
- An Enquiry Concerning Human Understanding
- The Philosophy of the Moral Feelings
- The Law and the Word
- Beyond Good and Evil
- The Young Woman's Guide
- Thoughts out of Season Part I
- Secret Societies
- Atheism in Pagan Antiquity
- Quotes and Images From The Confessions of J. J. Rousseau
- Improvement of the Understanding
- Another Study of Woman
- The Selections from the Principles of Philosophy
- Laws
- Shorter Prose Pieces
- Essays
- The Destiny of Man
- Book of Wise Sayings
- Myths and myth-makers
- The Physiology of Marriage, Part 2
- When a Man Comes to Himself
- Categoriae. English
- Ainsi Parlait Zarathoustra
- How to Marry Well
- Myth and Science
- Levels of Living
- Essays of Schopenhauer
- Moral Philosophy
- Utilitarianism
- The Dark House
- Philosophical Letters of Frederich Schiller
- The Symposium
- The Philosophy of Spinoza
- Thus Spake Zarathustra
- Dialogues Concerning Natural Religion
- Two Thousand Miles on an Automobile
- The Soul of Man under Socialism
- Feuerbach: The roots of the socialist philosophy
- The Heart of the New Thought
- The Memorable Thoughts of Socrates
- Analysis of Mr. Mill's System of Logic
- The Essays of Arthur Schopenhauer; Studies in Pessimism
- On Being Human
- The Unseen World and Other Essays
- Ion
- A Treatise of Human Nature
- The Evolution of Man — Volume 1
- The Ethics of Aristotle
- Ethics — Part 1
- The Philosophy of Despair
- Statesman
- Lessons in Life, for All Who Will Read Them
- Sophist
- Crime: Its Cause and Treatment
- History of Human Society