This collection gathers the primary texts through which Western thinkers have argued about knowledge, ethics, politics, and the nature of reality. Plato’s dialogues, Aristotle’s Ethics, Descartes’s Meditations, Kant’s Critiques, and Nietzsche’s provocations stand alongside John Stuart Mill’s utilitarianism and the empiricist tradition running from Locke through Hume — all available as free, cleanly-formatted EPUB downloads.
The shelf spans ancient metaphysics and ethics, medieval scholasticism, the Enlightenment’s remaking of epistemology and political theory, and the nineteenth century’s great systems and their critics. Authoritative Victorian translations make the Greek and German originals accessible, while works in English appear in the editions that shaped how philosophy was read and taught for generations. This is the essential library for anyone pursuing serious philosophical study.
- The City of God, Volume IAugustine of Hippo
- MeditationsMarcus Aurelius
- The Confessions of St. AugustineAugustine of Hippo
- The Man Who Was Thursday: A NightmareG. K. Chesterton
- Ecce Homo / Complete Works, Volume SeventeenFriedrich Wilhelm Nietzsche
- The Kama Sutra of VatsyayanaVatsyayana
- A Pickle for the Knowing OnesTimothy Dexter
- Selected Works of Voltairine de CleyreVoltairine De Cleyre
- The Lives and Opinions of Eminent PhilosophersDiogenes Laertius
- Thus Spake Zarathustra: A Book for All and NoneFriedrich Wilhelm Nietzsche
- The PrinceNiccolò Machiavelli
- ApologyPlato
- Chaucer's Works, Volume 2 — Boethius and TroilusGeoffrey Chaucer
- PhaedoPlato
- Plutarch's MoralsPlutarch
- Beyond Good and EvilFriedrich Wilhelm Nietzsche
- The EnchiridionEpictetus
- SymposiumPlato
- LeviathanThomas Hobbes
- Walden, and On The Duty Of Civil DisobedienceHenry David Thoreau
- PhaedrusPlato
- The Birth of Tragedy; or, Hellenism and PessimismFriedrich Wilhelm Nietzsche
- The Crown of Wild Olive / also Munera Pulveris; Pre-Raphaelitism; Aratra Pentelici; The Ethics of the Dust; Fiction, Fair and Foul; The Elements of DrawingJohn Ruskin
- The RepublicPlato
- The Consolation of PhilosophyBoethius
- The Meditations of the Emperor Marcus Aurelius Antoninus / A new rendering based on the Foulis translation of 1742Emperor of Rome Marcus Aurelius
- Cicero's Tusculan Disputations / Also, Treatises On The Nature Of The Gods, And On The CommonwealthMarcus Tullius Cicero
- The Republic of PlatoPlato
- On the Nature of ThingsTitus Lucretius Carus
- Thoughts of Marcus Aurelius AntoninusEmperor of Rome Marcus Aurelius
- The Confessions of Jean Jacques Rousseau — CompleteJean-Jacques Rousseau
- Bacon's Essays, and Wisdom of the AncientsFrancis Bacon
- A System of Logic, Ratiocinative and InductiveJohn Stuart Mill
- UtopiaSaint Thomas More
- Pascal's PenséesBlaise Pascal
- Second Treatise of GovernmentJohn Locke
- On LibertyJohn Stuart Mill
- The Will to Believe, and Other Essays in Popular PhilosophyWilliam James
- The Critique of Pure ReasonImmanuel Kant
- Little Journeys to the Homes of the Great Philosophers, Volume 8Elbert Hubbard
- Leibniz's New Essays Concerning the Human Understanding: A Critical ExpositionJohn Dewey
- Essays by Ralph Waldo EmersonRalph Waldo Emerson
- The Nicomachean ethics of AristotleAristotle
- The Genealogy of Morals / The Complete Works, Volume Thirteen, edited by Dr. Oscar Levy.Friedrich Wilhelm Nietzsche
- The Problems of PhilosophyBertrand Russell
- EthicsBenedictus de Spinoza
- Creative EvolutionHenri Bergson
- The Sceptical Chymist / or Chymico-Physical Doubts & Paradoxes, Touching the Spagyrist's Principles Commonly call'd Hypostatical; As they are wont to be Propos'd and Defended by the Generality of Alchymists. Whereunto is præmis'd Part of another Discourse relating to the same Subject.Robert Boyle
- A Budget of Paradoxes, Volume IIAugustus De Morgan
- A Practical View of the Prevailing Religious System of Professed Christians, in the Middle and Higher Classes in this Country, Contrasted with Real Christianity.William Wilberforce
- A System of Logic, Ratiocinative and Inductive (Vol. 1 of 2)John Stuart Mill
- The Varieties of Religious Experience: A Study in Human NatureWilliam James
- Homer's Odyssey / A CommentaryDenton Jaques Snider
- Jeremiah : Being The Baird Lecture for 1922George Adam Smith
- Evolution, Old & New / Or, the Theories of Buffon, Dr. Erasmus Darwin and Lamarck, / as compared with that of Charles DarwinSamuel Butler
- A Budget of Paradoxes, Volume IAugustus De Morgan
- An Essay Concerning Humane Understanding, Volume 1 / MDCXC, Based on the 2nd Edition, Books 1 and 2John Locke
- Manhood of Humanity.Alfred Korzybski
- The Twilight of the Idols; or, How to Philosophize with the Hammer. The Antichrist / Complete Works, Volume SixteenFriedrich Wilhelm Nietzsche
- As a man thinkethJames Allen
- SibyllaC. A. Mace
- The Approach to PhilosophyRalph Barton Perry
- Mysticism and Logic and Other EssaysBertrand Russell
- The Legacy of Greece / Essays By: Gilbert Murray, W. R. Inge, J. Burnet, Sir T. L. Heath, D'arcy W. Thompson, Charles Singer, R. W. Livingston, A. Toynbee, A. E. Zimmern, Percy Gardner, Sir Reginald Blomfield
- The Communist ManifestoKarl Marx
- On WarCarl von Clausewitz
- The ProphetKahlil Gibran
- Democracy and Education: An Introduction to the Philosophy of EducationJohn Dewey
- The World's Greatest Books — Volume 14 — Philosophy and Economics
- The Life RadiantLilian Whiting
- The Mind and the Brain / Being the Authorised Translation of L'Âme et le CorpsAlfred Binet
- The English Utilitarians, Volume 2 (of 3) / James MillLeslie Stephen
- Natural Law in the Spiritual WorldHenry Drummond
- Humanistic NursingJosephine G. Paterson
- The Theories of Darwin and Their Relation to Philosophy, Religion, and MoralityRudolf Schmid
- The Subjection of WomenJohn Stuart Mill
- SiddharthaHermann Hesse
- The English Utilitarians, Volume 1 (of 3)Leslie Stephen
- Revelations of Divine Loveof Norwich Julian
- Progress and History
- Past and Present / Thomas Carlyle's Collected Works, Vol. XIII.Thomas Carlyle
- An Enquiry Concerning Human UnderstandingDavid Hume
- India: What can it teach us? / A Course of Lectures Delivered before the University Of CambridgeF. Max Müller
- Devotions Upon Emergent Occasions; Together with Death's DuelJohn Donne
- NatureRalph Waldo Emerson
- Esprit des lois / livres I à V, précédés d'une introduction de l'éditeurbaron de Charles de Secondat Montesquieu
- A Treatise of Human NatureDavid Hume
- Discourse on the Method of Rightly Conducting One's Reason and of Seeking Truth in the SciencesRené Descartes
- The Principles of Psychology, Volume 1 (of 2)William James
- The Marriage of Heaven and HellWilliam Blake
- Erotika Biblioncomte de Honoré-Gabriel de Riqueti Mirabeau
- Considerations on Representative GovernmentJohn Stuart Mill
- A Theodicy, or, Vindication of the Divine GloryAlbert Taylor Bledsoe
- Sexueele Zeden in Woord en Beeld: Liefde en ZinnelijkheidD. Ph. van Vloten Elderinck
- Reflections; or Sentences and Moral MaximsFrançois de La Rochefoucauld
- The Poetics of AristotleAristotle
- The World as Will and Idea (Vol. 1 of 3)Arthur Schopenhauer
- The Temple of Nature; or, the Origin of Society: A Poem, with Philosophical NotesErasmus Darwin
- How We ThinkJohn Dewey
- Zoölogische Philosophie / Of beschouwingen over de Natuurlijke Historie der dieren etc.Jean Baptiste Pierre Antoine de Monet de Lamarck