Works
203 works by 31 authors · 35 readable here · 118 with editions online

Aristophanes
c. 446–386 BCE

Xenophon
c. 430–354 BCE

Plato
c. 428–348 BCE
- Apologyc. 399–390 BCE · Early period · Dialogue38 citationsRead
- EuthyphroEarly period · Dialogue15 citationsRead
- CritoEarly period · Dialogue14 citationsRead
- GorgiasEarly period · Dialogue20 citationsRead
- ProtagorasEarly period · Dialogue14 citationsRead
- MenoEarly-middle transition period · Dialogue23 citationsRead
- PhaedoMiddle period · Dialogue46 citationsRead
- SymposiumMiddle period · Dialogue2 citationsRead
- RepublicPoliteiaMiddle period · Dialogue77 citationsRead
- PhaedrusMiddle period · Dialogue6 citationsRead
- ParmenidesLate-middle period · Dialogue11 citationsRead
- TheaetetusLate-middle period · Dialogue13 citationsRead
- TimaeusLate period · Dialogue11 citationsRead
- LawsNomoiLate period · Dialogue12 citationsRead
- Seventh LetterEpistle VIILate (authenticity disputed) period · Letter1 citationOnline · 4 editions of Seventh Letter
- StatesmanPolitikosLate period · Dialogue1 citationRead
- PhilebusLate period · Dialogue4 citationsRead
- SophistLate period · Dialogue5 citationsRead
- CratylusMiddle period · Dialogue3 citationsRead

Aristotle
384–322 BCE
- CategoriesTreatise3 citationsOnline · 4 editions of Categories
- De InterpretationeTreatise4 citationsOnline · 3 editions of De Interpretatione
- Posterior AnalyticsTreatise16 citationsOnline · 3 editions of Posterior Analytics
- PhysicsTreatise23 citationsOnline · 3 editions of Physics
- On the HeavensDe CaeloTreatise3 citationsOnline · 3 editions of On the Heavens
- On the SoulDe AnimaTreatise24 citationsOnline · 2 editions of On the Soul
- MetaphysicsTreatise61 citationsOnline · 4 editions of Metaphysics
- Nicomachean EthicsTreatise65 citationsRead
- PoliticsTreatise10 citationsOnline · 4 editions of Politics
- PoeticsTreatise6 citationsOnline · 3 editions of Poetics
- Sophistical RefutationsDe Sophisticis ElenchisTreatise4 citationsOnline · 3 editions of Sophistical Refutations

Epicurus
341–270 BCE
- Letter to Menoeceusc. 300 BCE · Letter28 citationsRead
- Letter to HerodotusLetter52 citationsRead
- Principal DoctrinesKyriai Doxai31 citationsRead

Cicero
106–43 BCE
- On FateDe fato44 BCE · Dialogue1 citation

Lucretius
c. 99–55 BCE

Alexander of Aphrodisias
c. 150–215

Diogenes Laertius
c. 180–240

Plotinus
c. 204–270

Porphyry
c. 234–305

Augustine of Hippo
354–430
- Confessions397–400 · Autobiography24 citationsOnline · 5 editions of Confessions
- City of GodDe civitate Dei413–426 · Treatise27 citationsOnline · 3 editions of City of God
- On the Happy LifeDe beata vita386 · Dialogue1 citationOnline · 2 editions of On the Happy Life
- Against the AcademicsContra Academicos386 · Dialogue6 citationsOnline · 2 editions of Against the Academics
- On Free Choice of the WillDe libero arbitrio388–395 · Dialogue11 citationsOnline · 1 edition of On Free Choice of the Will
- On the Greatness of the SoulDe quantitate animae388 · Dialogue1 citationOnline · 1 edition of On the Greatness of the Soul
- On the TeacherDe magistro389 · Dialogue3 citationsOnline · 2 editions of On the Teacher
- On Eighty-Three Different QuestionsDe diversis quaestionibus octoginta tribus388–396 · Treatise1 citationOnline · 1 edition of On Eighty-Three Different Questions
- To SimplicianAd Simplicianum396 · Treatise2 citationsOnline · 1 edition of To Simplician
- On Christian TeachingDe doctrina christiana396–427 · Treatise6 citationsOnline · 3 editions of On Christian Teaching
- On the TrinityDe Trinitatec. 400–420 · Treatise13 citationsOnline · 2 editions of On the Trinity
- The Literal Meaning of GenesisDe Genesi ad litteramc. 401–415 · Commentary1 citation
John Philoponus
c. 490–570

al-Farabi
c. 872–950
- Enumeration of the SciencesIhsa al-ulumTreatise9 citationsOnline · 1 edition of Enumeration of the Sciences
- The Virtuous CityMabadi ara ahl al-madina al-fadilaTreatise27 citationsOnline · 3 editions of The Virtuous City
- The Philosophy of AristotleFalsafat AristutalisTreatise3 citations
- Long Commentary on Aristotle's De InterpretationeSharh li-kitab Aristutalis fi l-IbaraCommentary1 citation
- The Attainment of HappinessTahsil al-saadaTreatise11 citations
- The Philosophy of PlatoFalsafat AflatunTreatise3 citations
- Letter on the IntellectRisala fi l-aqlTreatise5 citations
- The Book of LettersKitab al-hurufTreatise5 citations
- The Conditions of CertaintySharait al-yaqinTreatise3 citations
- Selected AphorismsFusul muntazaaTreatise3 citations

Ibn Sina
980–1037
- The Book of HealingKitab al-Shifac. 1020–1027 · Treatise66 citationsOnline · 3 editions of The Book of Healing
- AutobiographyAutobiography4 citationsOnline · 3 editions of Autobiography
- The SalvationKitab al-NajatTreatise3 citationsOnline · 2 editions of The Salvation
- Pointers and Remindersal-Isharat wa-l-tanbihatTreatise19 citationsOnline · 1 edition of Pointers and Reminders
- Treatise on LoveRisala fi l-ishqTreatise3 citationsOnline · 2 editions of Treatise on Love

al-Ghazali
1058–1111
- The Incoherence of the PhilosophersTahafut al-falasifa1095 · Treatise25 citationsOnline · 3 editions of The Incoherence of the Philosophers
- The Standard of KnowledgeMiyar al-ilmc. 1095 · Treatise3 citations
- Moderation in Beliefal-Iqtisad fi l-itiqadc. 1095 · Treatise10 citations
- The Revival of the Religious SciencesIhya ulum al-dinafter 1095 · Treatise18 citations
- The Niche of LightsMishkat al-anwarTreatise4 citations
- Deliverance from Erroral-Munqidh min al-dalalafter 1106 · Autobiography20 citations

Ibn Rushd
1126–1198
- Long Commentary on Aristotle's De AnimaCommentarium magnum in Aristotelis De anima librosCommentary16 citations
- The Decisive TreatiseFasl al-maqalc. 1179 · Treatise18 citations
- Exposition of the Methods of Proofal-Kashf an manahij al-adillac. 1179 · Treatise8 citations
- The Incoherence of the IncoherenceTahafut al-tahafutc. 1180 · Treatise13 citations
- Long Commentary on Aristotle's MetaphysicsTafsir ma bad al-tabiaCommentary8 citations
- Middle Commentary on Aristotle's PoeticsTalkhis kitab al-shirCommentary2 citations
- Commentary on Plato's RepublicArabic lost; extant in HebrewCommentary7 citations

Suhrawardi
1154–1191
- The Philosophy of IlluminationHikmat al-ishraq1186 · Treatise45 citations
- The Intimationsal-Talwihat al-lawhiyya wa-l-arshiyyaTreatise10 citations
- On the Reality of LoveFi haqiqat al-ishq (Munis al-ushshaq)Treatise3 citations
- The Tale of the Western ExileQissat al-ghurba al-gharbiyyaTreatise3 citations

Nasir al-Din Tusi
1201–1274
- Commentary on the Pointers and RemindersSharh al-Isharat wa-l-tanbihat (Hall mushkilat al-Isharat)c. 1246 · Commentary21 citations
- The Abstract of BeliefTajrid al-itiqadTreatise18 citations
- The Nasirean EthicsAkhlaq-i Nasiri1235; preface revised after 1256 · Treatise8 citations
- The Foundation of InferenceAsas al-iqtibasc. 1244 · Treatise6 citations
- Digest of the CompendiumTalkhis al-MuhassalCommentary4 citations
- The Wrestler FlooredMasari al-musariTreatise3 citations
- The Beginning and the EndAghaz u anjamTreatise2 citations
- Contemplation and ActionSayr u sulukAutobiography2 citations

Thomas Aquinas
c. 1225–1274
- On Being and EssenceDe ente et essentiac. 1252–1256 · Treatise7 citationsOnline · 3 editions of On Being and Essence
- Summa Theologiae1265–1274 · Treatise89 citationsOnline · 4 editions of Summa Theologiae
- On the Unity of the Intellect against the Averroists1270 · Treatise6 citationsOnline · 3 editions of On the Unity of the Intellect against the Averroists
- Commentary on Aristotle's MetaphysicsSententia libri Metaphysicaec. 1270–1272 · Commentary2 citationsOnline · 2 editions of Commentary on Aristotle's Metaphysics
- Disputed Questions on TruthQuaestiones disputatae de veritate1256–1259 · Treatise5 citationsOnline · 2 editions of Disputed Questions on Truth
- Summa contra Gentilesc. 1259–1265 · Treatise11 citationsOnline · 3 editions of Summa contra Gentiles
- On KingshipDe regno ad regem Cypric. 1267 · Treatise1 citationOnline · 2 editions of On Kingship
- Commentary on the Book of CausesSuper librum De causis expositio1272 · Commentary3 citationsOnline · 1 edition of Commentary on the Book of Causes
- On the Eternity of the WorldDe aeternitate mundi1271 · Treatise3 citationsOnline · 2 editions of On the Eternity of the World

Mir Findiriski
c. 1562–1640
- Treatise on the CraftsRisala-yi sinaiyya (Haqaiq al-sanai)Treatise5 citations
- Treatise on MotionRisala fi l-harakaTreatise7 citations
- Treatise on GradationRisala fi l-tashkikTreatise4 citations
- The Philosophical OdeQasida-yi hikmiyya (Charkh ba in akhtaran)7 citations
- Selections from the Yoga VasisthaMuntakhab-i Jug (Jug-basasht)Notes3 citations
Mulla Sadra
c. 1572–1640
- Glosses on the Metaphysics of The HealingTaliqat ala Ilahiyyat al-ShifaCommentary2 citations
- Glosses on the Commentary on The Philosophy of IlluminationTaliqat ala Sharh Hikmat al-ishraqCommentary5 citations
- The Transcendent Philosophy of the Four Journeys of the Intellectal-Hikma al-mutaaliya fi l-asfar al-aqliyya al-arbaaTreatise42 citations
- The Book of Metaphysical PenetrationsKitab al-MashairTreatise5 citations
- The Divine Witnessesal-Shawahid al-rububiyya fi l-manahij al-sulukiyyaTreatise5 citations
- The Wisdom of the Throneal-Hikma al-arshiyyaTreatise4 citations
- The Origin and the Returnal-Mabda wa-l-maadTreatise2 citations
- On the Origination of the WorldRisala fi l-huduthTreatise1 citation
- Commentary on the Usul al-kafiSharh Usul al-kafiCommentary2 citations

René Descartes
1596–1650
- Discourse on the Method1637 · Treatise11 citationsOnline · 4 editions of Discourse on the Method
- Meditations on First Philosophy1641 · Treatise35 citationsOnline · 4 editions of Meditations on First Philosophy
- CorrespondenceLetter16 citationsOnline · 2 editions of Correspondence
- Compendium of MusicCompendium musicae1618 · Treatise2 citationsOnline · 1 edition of Compendium of Music
- Objections and Replies1641 · Treatise11 citationsOnline · 3 editions of Objections and Replies
- Principles of PhilosophyPrincipia philosophiae1644 · Treatise12 citationsOnline · 4 editions of Principles of Philosophy
- Comments on a Certain BroadsheetNotae in programma quoddam1648 · Treatise1 citationOnline · 1 edition of Comments on a Certain Broadsheet
- The Passions of the SoulLes passions de l'âme1649 · Treatise3 citationsOnline · 3 editions of The Passions of the Soul

Baruch Spinoza
1632–1677

David Hume
1711–1776
- A Treatise of Human Nature1739–1740 · Treatise56 citationsRead
- An Enquiry concerning Human Understanding1748 · Treatise35 citationsRead
- Of the First Principles of Government1741 · Essay1 citationOnline · 3 editions of Of the First Principles of Government
- The Sceptic1742 · Essay3 citationsOnline · 3 editions of The Sceptic
- An Enquiry concerning the Principles of Morals1751 · Treatise6 citationsRead
- Idea of a Perfect Commonwealth1752 · Essay1 citationOnline · 3 editions of Idea of a Perfect Commonwealth
- Of the Standard of Taste1757 · Essay3 citationsOnline · 3 editions of Of the Standard of Taste
- Of the Immortality of the Soul1777 (posthumous) · Essay4 citationsOnline · 3 editions of Of the Immortality of the Soul
- Dialogues concerning Natural Religion1779 (posthumous) · Dialogue8 citationsOnline · 3 editions of Dialogues concerning Natural Religion

Immanuel Kant
1724–1804
- Critique of Pure Reason1781/1787 · Treatise63 citationsOnline · 4 editions of Critique of Pure Reason
- Prolegomena to Any Future Metaphysics1783 · Treatise9 citationsOnline · 4 editions of Prolegomena to Any Future Metaphysics
- Groundwork of the Metaphysics of Morals1785 · Treatise15 citationsOnline · 4 editions of Groundwork of the Metaphysics of Morals
- Remarks in the Observations on the Feeling of the Beautiful and Sublime1764–1765 · Notes2 citationsOnline · 1 edition of Remarks in the Observations on the Feeling of the Beautiful and Sublime
- Critique of Practical ReasonKritik der praktischen Vernunft1788 · Critical period · Treatise8 citationsOnline · 4 editions of Critique of Practical Reason
- Critique of the Power of JudgmentKritik der Urteilskraft1790 · Critical period · Treatise8 citationsOnline · 3 editions of Critique of the Power of Judgment
- On a Discovery whereby Any New Critique of Pure Reason Is to Be Made Superfluous by an Older OneÜber eine Entdeckung, nach der alle neue Kritik der reinen Vernunft durch eine ältere entbehrlich gemacht werden soll1790 · Critical period · Treatise2 citationsOnline · 2 editions of On a Discovery whereby Any New Critique of Pure Reason Is to Be Made Superfluous by an Older One
- Toward Perpetual PeaceZum ewigen Frieden1795 · Critical period · Treatise2 citationsOnline · 3 editions of Toward Perpetual Peace
- The Metaphysics of MoralsDie Metaphysik der Sitten1797 · Critical period · Treatise7 citationsOnline · 3 editions of The Metaphysics of Morals

G. W. F. Hegel
1770–1831
- Phenomenology of Spirit1807 · Treatise21 citationsOnline · 4 editions of Phenomenology of Spirit
- The Difference between Fichte's and Schelling's System of Philosophy1801 · Treatise4 citationsOnline · 1 edition of The Difference between Fichte's and Schelling's System of Philosophy
- Encyclopaedia of the Philosophical Sciences1817/1830 · Treatise41 citationsOnline · 3 editions of Encyclopaedia of the Philosophical Sciences
- Elements of the Philosophy of RightGrundlinien der Philosophie des Rechts1820 · Treatise20 citationsOnline · 2 editions of Elements of the Philosophy of Right
- Lectures on AestheticsVorlesungen über die Ästhetik1818–1829 (ed. Hotho 1835–1838) · Lectures3 citationsOnline · 2 editions of Lectures on Aesthetics
- Lectures on the Proofs of the Existence of GodVorlesungen über die Beweise vom Dasein Gottes1829 (Hegel's manuscript; published 1832) · Lectures1 citationOnline · 1 edition of Lectures on the Proofs of the Existence of God
- Lectures on the Philosophy of ReligionVorlesungen über die Philosophie der Religion1821–1831 · Lectures2 citationsOnline · 2 editions of Lectures on the Philosophy of Religion
- Science of LogicWissenschaft der Logik1812–1816 · Treatise1 citation

Friedrich Nietzsche
1844–1900
- Twilight of the Idols1889 · Treatise17 citationsRead
- On the Genealogy of Morals1887 · Treatise18 citationsRead
- Schopenhauer as EducatorUntimely Meditations III1874 · Treatise1 citationRead
- The Birth of TragedyDie Geburt der Tragödie1872 (new preface 1886) · Early period · Treatise5 citationsRead
- On Truth and Lies in a Nonmoral SenseÜber Wahrheit und Lüge im außermoralischen Sinne1873 (unpublished) · Early period · Treatise1 citationRead
- HumanMenschliches1878 (vol. II 1879–1880) · Middle period · Treatise3 citationsRead
- DaybreakMorgenröte1881 · Middle period · Treatise1 citationRead
- The Gay ScienceDie fröhliche Wissenschaft1882 (Book V 1887) · Middle period · Treatise20 citationsRead
- Thus Spoke ZarathustraAlso sprach Zarathustra1883–1885 · Late period10 citationsOnline · 3 editions of Thus Spoke Zarathustra
- Beyond Good and EvilJenseits von Gut und Böse1886 · Late period · Treatise22 citationsRead
- The AntichristDer Antichrist1888 (published 1895) · Late period · Treatise7 citationsRead

Edmund Husserl
1859–1938
- Logical InvestigationsHua XVIII; XIX/1–21900–1901 · Treatise14 citationsOnline · 1 edition of Logical Investigations
- Ideas IHua III/11913 · Treatise31 citationsOnline · 1 edition of Ideas I
- Cartesian MeditationsHua I1931 · Lectures11 citations
- Ideas IIIdeen zu einer reinen Phänomenologie und phänomenologischen Philosophie, Zweites Buch (Hua IV)1912–1928 (published 1952) · Notes5 citations
- Lectures on Ethics and Value Theory 1908–1914Vorlesungen über Ethik und Wertlehre 1908–1914 (Hua XXVIII)1908–1914 (published 1988) · Lectures3 citations
- Articles on Renewal (for the journal Kaizo)Fünf Aufsätze über Erneuerung (Hua XXVII)1922–1924 · Treatise2 citations
- The Crisis of European Sciences and Transcendental PhenomenologyDie Krisis der europäischen Wissenschaften und die transzendentale Phänomenologie (Hua VI)1936–1937 (Parts I–II, §§1–27, published 1936 in Philosophia; complete text first in Hua VI, 1954) · Treatise7 citations
- Analyses Concerning Passive and Active SynthesisAnalysen zur passiven Synthesis (Hua XI)1918–1926 (published 1966) · Lectures2 citations
- Phantasy, Image Consciousness, and MemoryPhantasie, Bildbewusstsein, Erinnerung (Hua XXIII)1898–1925 (published 1980) · Notes1 citation
- Letter to Hugo von Hofmannsthal12 January 1907 · Letter1 citation
- Introduction to EthicsEinleitung in die Ethik (Hua XXXVII)1920/1924 (published 2004) · Lectures1 citation
- On the Phenomenology of Intersubjectivity, Part ThreeZur Phänomenologie der Intersubjektivität. Dritter Teil: 1929–1935 (Hua XV)1929–1935 (published 1973) · Notes2 citations
- Limit Problems of PhenomenologyGrenzprobleme der Phänomenologie (Hua XLII)1908–1937 (published 2014) · Notes2 citations

Martin Heidegger
1889–1976
- Being and TimeSein und Zeit1927 · Treatise40 citationsOnline · 1 edition of Being and Time
- The Phenomenology of Religious Life (lectures on Augustine and Neoplatonism)GA 601920–1921 · Lectures2 citations
- Letter on HumanismBrief über den Humanismus1946 · Letter10 citations
- Phenomenological Interpretations of Aristotle: Initiation into Phenomenological ResearchPhänomenologische Interpretationen zu Aristoteles. Einführung in die phänomenologische Forschung (GA 61)1921–1922 (published 1985) · Lectures2 citations
- Phenomenological Interpretations with Respect to Aristotle (Natorp report)Phänomenologische Interpretationen zu Aristoteles (Anzeige der hermeneutischen Situation) (GA 62)1922 (published 1989) · Treatise2 citations
- Plato's SophistPlaton: Sophistes (GA 19)1924–1925 (published 1992) · Lectures1 citation
- History of the Concept of TimeProlegomena zur Geschichte des Zeitbegriffs (GA 20)1925 (published 1979) · Lectures1 citation
- The Basic Problems of PhenomenologyDie Grundprobleme der Phänomenologie (GA 24)1927 (published 1975) · Lectures2 citations
- Kant and the Problem of MetaphysicsKant und das Problem der Metaphysik (GA 3)1929 · Treatise2 citationsOnline · 1 edition of Kant and the Problem of Metaphysics
- What Is Metaphysics?Was ist Metaphysik? (GA 9)1929 (postscript 1943, introduction 1949) · Speech2 citationsOnline · 1 edition of What Is Metaphysics?
- On the Essence of TruthVom Wesen der Wahrheit (GA 9)1930 (published 1943) · Speech5 citations
- The Essence of Human FreedomVom Wesen der menschlichen Freiheit (GA 31)1930 (published 1982) · Lectures2 citations
- The Self-Assertion of the German UniversityDie Selbstbehauptung der deutschen Universität (GA 16)1933 · Speech1 citation
- Appeal to German StudentsDeutsche Studenten (GA 16)3 November 1933 · Speech1 citation
- The Origin of the Work of ArtDer Ursprung des Kunstwerkes (GA 5)1935–1936 (published 1950) · Lectures2 citations
- Nietzsche: The Will to Power as ArtNietzsche: Der Wille zur Macht als Kunst (GA 43)1936–1937 (published 1985; revised in Nietzsche I, 1961) · Lectures1 citation
- The Age of the World PictureDie Zeit des Weltbildes (GA 5)1938 (published 1950) · Speech1 citation
- Plato's Doctrine of TruthPlatons Lehre von der Wahrheit (GA 9)1940 (published 1942) · Treatise2 citations
- Nietzsche's Word: "God Is Dead"Nietzsches Wort »Gott ist tot« (GA 5)1943 (published 1950) · Lectures5 citations
- The Question Concerning TechnologyDie Frage nach der Technik (GA 7)1953 · Speech3 citations
- Only a God Can Save Us (Der Spiegel interview)Nur noch ein Gott kann uns retten (GA 16)1966 (published 1976) · Dialogue1 citation
- The End of Philosophy and the Task of ThinkingDas Ende der Philosophie und die Aufgabe des Denkens (GA 14)1964 (published 1969) · Speech3 citations
- Anaximander's SayingDer Spruch des Anaximander (GA 5)1946 (published 1950) · Essay1 citation
- Introduction to MetaphysicsEinführung in die Metaphysik (GA 40)1935 (published 1953) · Lectures1 citation
- On the Essence of GroundVom Wesen des Grundes (GA 9)1929 · Essay1 citation

Jean-Paul Sartre
1905–1980
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