- Chinese Literature
- The Philosophy of Despair
- Myths and myth-makers
- The Destiny of Man
- Ethics — Part 4
- Study of a Woman
- A Man's Value to Society
- Quotes and Images From The Confessions of J. J. Rousseau
- The Existence of God
- Secret Societies
- Ethics — Part 2
- The Philosophy of the Moral Feelings
- The Young Woman's Guide
- Beyond Good and Evil
- Liberalism
- The Selections from the Principles of Philosophy
- Democracy and Social Ethics
- The Ethics of Aristotle
- Essays
- A Short History of Greek Philosophy
- How To Behave: A Pocket Manual of Republican Etiquette, and Guide to Correct Personal Habits
- Ion
- Sophist
- Ethics — Part 5
- A Philosophical Dictionary, Volume 10
- Statesman
- The Will to Believe : and Other Essays in Popular Philosophy
- Lessons in Life, for All Who Will Read Them
- Atheism in Pagan Antiquity
- Myth and Science
- When a Man Comes to Himself
- Fundamental Principles of the Metaphysic of Morals
- A Selection from the Discourses of Epictetus with the Encheiridion
- Little Essays of Love and Virtue
- Little Essays of Love and Virtue
- Laws
- Seekers after God
- The Soul of Man under Socialism
- The Positive School of Criminology
- The Golden Sayings of Epictetus
- The Law and the Word
- Thus Spake Zarathustra
- The Metaphysical Elements of Ethics
- Walden
- A System of Logic: Ratiocinative and Inductive
- Ancient and Modern Celebrated Freethinkers
- Improvement of the Understanding
- The Critique of Pure Reason
- A Treatise of Human Nature
- The Heart of the New Thought
- Categoriae. English
- Feuerbach: The roots of the socialist philosophy
- Crime: Its Cause and Treatment
- Apology
- A Essay Towards a New Theory of Vision
- On Being Human
- Politics: A Treatise on Government
- Ethics — Part 1
- A Lie Never Justifiable
- The Critique of Practical Reason
- The Memorable Thoughts of Socrates
- Summa Theologica, Part II-II (Secunda Secundae)
- A Philosophical Dictionary, Volume 1
- The Indolence of the Filipino
- Essays
- The Royal Wedding - Official Souvenir Programme
- The Consolation of Philosophy
- Notes from the Underground
- The Philosophy of Spinoza
- The Preface to Aristotle's Art of Poetry
- An Enquiry Concerning Human Understanding
- Youth and Sex
- Poetics. English
- Criminal Sociology
- Ethics — Part 3
- The Investment of Influence
- The Faith of Our Fathers
- Protagoras
- The Prince
- Apology, Crito, and Phaedo of Socrates
- Wear and Tear
- Reflections; or Sentences and Moral Maxims
- The Basis of Morality
- How to Observe
- From Ritual to Romance
- The Unseen World and Other Essays
- Civil Disobedience
- The Republic
- How to Marry Well
- The Essays of Arthur Schopenhauer; Religion, a Dialogue, Etc.
- Herland
- Utilitarianism
- Moral Philosophy
- Levels of Living
- The Ego and His Own
- The Map of Life
- Essays of Schopenhauer
- The Holy war, made by King Shaddai upon Diabolus, for the regaining of the metropolis of the world; ...
- Book of Wise Sayings
- Homer and Classical Philology