- Discours de la méthode
- A Guide to Methods and Observation in History
- A Saudade
- The Essays of Arthur Schopenhauer; Religion, a Dialogue, Etc.
- L'homme Qui Rit
- Letters to His Son on the Art of Becoming a Man of the World and a Gentleman, 1753-54
- Lettre à l'Empereur Alexandre sur la traite des noirs
- Compendio da relaçam, que veyo da India o anno de 1691
- The Spirit Proper to the Times.
- Insights and Heresies Pertaining to the Evolution of the Soul
- A Very Pleasaunt & Fruitful Diologe Called The Epicure
- Filosofía Fundamental, Tomo II
- An Enquiry Concerning Human Understanding
- Wanted, a Young Woman to Do Housework
- Réflexions ou sentences et maximes morales
- How to Observe
- Study of Child Life
- The Ruins, or, Meditation on the Revolutions of Empires and the Law of Nature
- Projet d'une loi portant défense d'apprendre à lire aux femmes
- The Faith of Our Fathers
- Autour de la table
- Catéchisme libertin
- Filosofía Fundamental, Tomo IV
- How To Behave: A Pocket Manual of Republican Etiquette, and Guide to Correct Personal Habits
- Ethics — Part 5
- Ethics — Part 4
- The Home
- Theodicy
- A Philosophical Dictionary, Volume 1
- The Physiology of Marriage, Part 2
- The Philosophy of Evolution
- The Existence of God
- Studies in Pessimism
- The Selections from the Principles of Philosophy
- The Selections from the Principles of Philosophy
- De la littérature des nègres, ou Recherches sur leurs facultés intellectuelles, leurs qualités moral...
- Essays
- Is Life Worth Living?
- Chronica de el-rei D. Affonso Henriques
- Filosofía Fundamental, Tomo I
- Evening Round Up
- The Philosophy of the Conditioned
- Aphorismes sur la sagesse dans la vie
- Banquet du 17 janvier 1841
- Ethica
- The Metaphysical Elements of Ethics
- The Critique of Pure Reason
- Regrets sur ma vieille robe de chambre
- Fundamental Principles of the Metaphysic of Morals
- The Prince
- La monadologie (1909)
- Improvement of the Understanding
- The Republic
- Ourika
- Essays
- The System of Nature, Volume 2
- The History of Puerto Rico
- De veritate religionis Christianae. French
- Among My Books
- Beyond Good and Evil
- Relation de l'Islande
- Rollo's Philosophy. [Air]
- The Philosophy of the Moral Feelings
- Esprit des lois
- The Philosophy of Spinoza
- A Treatise Concerning the Principles of Human Knowledge
- Dialogues Concerning Natural Religion
- Creating Capital
- The Young Woman's Guide
- Aeroplanes
- Filosofía Fundamental
- The Etiquette of To-day
- Miragaia
- L’Ingénu
- La ruelle mal assortie
- Kritik der reinen Vernunft
- Marie ou l'Esclavage aux Etats-Unis
- Réflexions sur le sort des Noirs dans nos colonies
- Chinese Literature
- Study of a Woman
- Ceci n'est pas un conte
- The Essays of Arthur Schopenhauer; Studies in Pessimism
- La philosophie sociale dans le theatre d'Ibsen
- Um brado contra as monterias de cerco aos Lobos na Provincia do Alemtejo
- Littérature et Philosophie mêlées
- Quotes and Images From The Confessions of J. J. Rousseau
- Auguste Comte and Positivism
- Politics: A Treatise on Government
- The Consolation of Philosophy
- The Critique of Practical Reason
- Abélard, Tome II
- Les Femmes de la Révolution
- Utilitarianism
- The Physical Life of Woman:
- Review of the Work of Mr John Stuart Mill Entitled, 'Examination of Sir William Hamilton's Philosoph...
- Entretien d’un père avec ses enfants
- The Ego and His Own
- Essays of Schopenhauer
- Reflections; or Sentences and Moral Maxims
- Ethica. English