Φ · From the first philosopher to 2026

The History of Philosophy

A growing catalogue of the thinkers who shaped how humanity understands reality, knowledge, and how to live. Each entry maps their timeline, the positions they supported and why, the causes they championed, the issues they wrestled with, the hurdles they faced, and every work — surviving or lost.

163philosophers
62schools
323works catalogued
~2,650years covered

Volumes I–VI · The complete arc — from Thales, the Buddha, Confucius, and Laozi (6th c. BCE) to living philosophers of the present day. Greek, Roman, Indian, Chinese, Islamic, Jewish, Byzantine, and modern thought, in one connected story.

The Timeline

Every philosopher in chronological order — from Thales to living thinkers of today, across every major tradition. Note how the Buddha, Confucius, and Laozi stand beside the Presocratics. Hover a marker; click to open.

500 BCE400 BCE300 BCE100 BCE200 CE400 CE600 CE1000 CE1200 CE1400 CE1600 CE1800 CE1900 CE
Thales of Miletus · 624–546 BCEAnaximander · 610–546 BCECārvāka (Lokāyata) · 600–500 BCEMahāvīra · 599–527 BCEAnaximenes · 586–526 BCEPythagoras · 570–495 BCEXenophanes of Colophon · 570–478 BCELaozi · 570–500 BCEThe Buddha · 563–483 BCEConfucius · 551–479 BCEHeraclitus · 535–475 BCEParmenides · 515–450 BCEAnaxagoras · 500–428 BCEEmpedocles · 494–434 BCEZeno of Elea · 490–430 BCEProtagoras · 490–420 BCEGorgias · 483–375 BCELeucippus · 480–420 BCESocrates · 470–399 BCEMelissus of Samos · 470–430 BCEPhilolaus · 470–385 BCEMozi · 470–391 BCEDemocritus · 460–370 BCEAntisthenes · 445–365 BCEAristippus of Cyrene · 435–356 BCEArchytas of Tarentum · 435–347 BCEXenophon · 430–354 BCEPlato · 428–348 BCEDiogenes of Sinope · 412–323 BCEAristotle · 384–322 BCEMencius · 372–289 BCETheophrastus · 371–287 BCEZhuangzi · 369–286 BCECrates of Thebes · 365–285 BCEPyrrho of Elis · 360–270 BCEHipparchia of Maroneia · 350–280 BCEEpicurus · 341–270 BCEZeno of Citium · 334–262 BCECleanthes · 330–230 BCEArcesilaus · 316–241 BCEXunzi · 310–235 BCEHan Feizi · 280–233 BCEChrysippus · 279–206 BCECarneades · 214–129 BCEKaṇāda · 200–140 BCEPanaetius of Rhodes · 185–110 BCEPosidonius · 135–51 BCECicero · 106–43 BCELucretius · 99–55 BCEAenesidemus · 80–10 BCEPhilo of Alexandria · 25 BCE – 50 CESeneca · 4 BCE – 65 CEMusonius Rufus · 30–100 CEPlutarch · 46–120 CEEpictetus · 50–135 CEMarcus Aurelius · 121–180 CEPatañjali · 150–200 CENāgārjuna · 150–250 CEAkṣapāda Gautama · 150–200 CESextus Empiricus · 160–210 CEPlotinus · 204–270 CEPorphyry · 234–305 CEIamblichus · 245–325 CEAsaṅga · 300–370 CEĪśvarakṛṣṇa · 320–380 CEVasubandhu · 350–430 CEAugustine of Hippo · 354–430 CEHypatia of Alexandria · 360–415 CEProclus · 412–485 CEBodhidharma · 440–530 CEBoethius · 477–524 CEPseudo-Dionysius the Areopagite · 480–530 CEDignāga · 480–540 CEDharmakīrti · 600–660 CEHuineng · 638–713 CEĀdi Śaṅkara · 700–750 CEAl-Kindī · 801–873 CEJohn Scotus Eriugena · 815–877 CEAl-Fārābī · 872–950 CESaadia Gaon · 882–942 CEAvicenna · 980–1037 CEMichael Psellos · 1017–1078 CERāmānuja · 1017–1137 CEZhou Dunyi · 1017–1073 CESolomon ibn Gabirol · 1021–1058 CEAnselm of Canterbury · 1033–1109 CECheng Yi · 1033–1107 CEAl-Ghazālī · 1058–1111 CEJudah Halevi · 1075–1141 CEPeter Abelard · 1079–1142 CEBernard of Clairvaux · 1090–1153 CEPeter Lombard · 1096–1160 CEHildegard of Bingen · 1098–1179 CEAverroes · 1126–1198 CEZhu Xi · 1130–1200 CEMaimonides · 1138–1204 CELu Jiuyuan · 1139–1193 CESuhrawardī · 1154–1191 CEIbn ʿArabī · 1165–1240 CERobert Grosseteste · 1168–1253 CEAlbertus Magnus · 1200–1280 CEHenry of Ghent · 1217–1293 CERoger Bacon · 1219–1292 CEBonaventure · 1221–1274 CEThomas Aquinas · 1225–1274 CERamon Llull · 1232–1316 CEMadhva · 1238–1317 CESiger of Brabant · 1240–1284 CEMarguerite Porete · 1250–1310 CEMeister Eckhart · 1260–1328 CEJohn Duns Scotus · 1266–1308 CEMarsilius of Padua · 1275–1342 CEWilliam of Ockham · 1287–1347 CEGregory Palamas · 1296–1359 CEJean Buridan · 1301–1362 CEIbn Khaldūn · 1332–1406 CEGemistos Plethon · 1355–1452 CENicholas of Cusa · 1401–1464 CENiccolò Machiavelli · 1469–1527 CEWang Yangming · 1472–1529 CEMichel de Montaigne · 1533–1592 CEFrancis Bacon · 1561–1626 CEThomas Hobbes · 1588–1679 CERené Descartes · 1596–1650 CEBlaise Pascal · 1623–1662 CEBaruch Spinoza · 1632–1677 CEJohn Locke · 1632–1704 CEGottfried Wilhelm Leibniz · 1646–1716 CEGeorge Berkeley · 1685–1753 CEMontesquieu · 1689–1755 CEVoltaire · 1694–1778 CEÉmilie du Châtelet · 1706–1749 CEDavid Hume · 1711–1776 CEJean-Jacques Rousseau · 1712–1778 CEAdam Smith · 1723–1790 CEImmanuel Kant · 1724–1804 CEMary Wollstonecraft · 1759–1797 CEG. W. F. Hegel · 1770–1831 CEArthur Schopenhauer · 1788–1860 CEJohn Stuart Mill · 1806–1873 CESøren Kierkegaard · 1813–1855 CEKarl Marx · 1818–1883 CECharles Sanders Peirce · 1839–1914 CEWilliam James · 1842–1910 CEFriedrich Nietzsche · 1844–1900 CEGottlob Frege · 1848–1925 CEEdmund Husserl · 1859–1938 CENishida Kitarō · 1870–1945 CEBertrand Russell · 1872–1970 CELudwig Wittgenstein · 1889–1951 CEMartin Heidegger · 1889–1976 CEKarl Popper · 1902–1994 CEJean-Paul Sartre · 1905–1980 CEHannah Arendt · 1906–1975 CESimone de Beauvoir · 1908–1986 CEW. V. O. Quine · 1908–2000 CEJohn Rawls · 1921–2002 CEThomas Kuhn · 1922–1996 CEFrantz Fanon · 1925–1961 CEMichel Foucault · 1926–1984 CEPeter Singer · 1946 CE – presentMartha Nussbaum · 1947 CE – presentDavid Chalmers · 1966 CE – present

The Philosophers

163 of 163

T

Thales of Miletus

624–546 BCE

The first philosopher — sought the single stuff behind all things.

Milesian School2 works
A

Anaximander

610–546 BCE

Proposed the boundless 'apeiron' and drew the first map of the world.

Milesian School1 work
C

Cārvāka (Lokāyata)

600–500 BCE

India's materialist and empiricist heterodoxy — only perception is knowledge, only this world is real.

Cārvāka1 work
M

Mahāvīra

599–527 BCE

24th Tīrthaṅkara of Jainism — radical nonviolence and the many-sidedness of truth.

Jainism1 work
A

Anaximenes

586–526 BCE

Said air is the source of all, transformed by condensation and rarefaction.

Milesian School1 work
P

Pythagoras

570–495 BCE

Number is the essence of reality; founded a mystical mathematical brotherhood.

Pythagoreanism1 work
X

Xenophanes of Colophon

570–478 BCE

Mocked man-made gods; glimpsed one non-human God and the limits of knowledge.

Eleatic School2 works
L

Laozi

570–500 BCE

Semi-legendary founder of Daoism and the Dao De Jing — the Way and non-action.

Daoism1 work
T

The Buddha

563–483 BCE

Awakened teacher of suffering's end — the Four Noble Truths and the Middle Way.

Buddhism1 work
C

Confucius

551–479 BCE

Teacher of virtue, ritual, and humaneness who shaped East Asian civilization.

Confucianism1 work
H

Heraclitus

535–475 BCE

'Everything flows' — reality is ceaseless change governed by the Logos.

Ephesian / Ionian1 work
P

Parmenides

515–450 BCE

Argued from pure reason that Being is one, changeless, and eternal.

Eleatic School1 work
A

Anaxagoras

500–428 BCE

'In everything a portion of everything'; Mind (Nous) orders the cosmos.

Pluralists1 work
E

Empedocles

494–434 BCE

Four roots (earth, air, fire, water) mixed by Love and Strife.

Pluralists2 works
Z

Zeno of Elea

490–430 BCE

Defended Parmenides with paradoxes showing motion and plurality absurd.

Eleatic School1 work
P

Protagoras

490–420 BCE

'Man is the measure of all things' — the first great relativist.

Sophists2 works
G

Gorgias

483–375 BCE

Master rhetorician who argued that nothing exists — and if it did, we couldn't know it.

Sophists3 works
L

Leucippus

480–420 BCE

Founder of atomism — 'nothing happens in vain, but all from reason and necessity.'

Atomism2 works
S

Socrates

470–399 BCE

Knew that he knew nothing; died for the examined life.

Socratic1 work
M

Melissus of Samos

470–430 BCE

Eleatic who argued Being is infinite — and an admiral who beat the Athenian fleet.

Eleatic School1 work
P

Philolaus

470–385 BCE

First Pythagorean to publish; put a 'central fire', not the earth, at the cosmos's heart.

Pythagoreanism1 work
M

Mozi

470–391 BCE

Founder of Mohism — impartial care, meritocracy, and against wasteful war.

Mohism1 work
D

Democritus

460–370 BCE

Reality is atoms and void — a purposeless, mechanical universe.

Atomism3 works
A

Antisthenes

445–365 BCE

Socratic ascetic and founder of Cynicism — virtue alone suffices for happiness.

Cynicism1 work
A

Aristippus of Cyrene

435–356 BCE

The Socratic who made pleasure the goal — founder of Cyrenaic hedonism.

Cyrenaicism1 work
A

Archytas of Tarentum

435–347 BCE

Pythagorean statesman, mathematician, and the friend who saved Plato's life.

Pythagoreanism1 work
X

Xenophon

430–354 BCE

Soldier-historian whose memoirs preserve a practical, down-to-earth Socrates.

Socratic5 works
P

Plato

428–348 BCE

Reality lies in eternal Forms; founded the Academy and wrote the dialogues.

Platonism (The Academy)7 works
D

Diogenes of Sinope

412–323 BCE

The Cynic who lived in a jar and mocked every convention.

Cynicism1 work
A

Aristotle

384–322 BCE

The systematizer of everything — logic, nature, ethics, politics.

Peripatetic (The Lyceum)7 works
M

Mencius

372–289 BCE

The 'Second Sage' of Confucianism who held that human nature is good.

Confucianism1 work
T

Theophrastus

371–287 BCE

Aristotle's successor and the 'father of botany.'

Peripatetic (The Lyceum)4 works
Z

Zhuangzi

369–286 BCE

Daoist master of spontaneity, relativity, and the freedom of the open mind.

Daoism1 work
C

Crates of Thebes

365–285 BCE

The gentle Cynic who gave away a fortune — and taught Zeno the Stoic.

Cynicism1 work
P

Pyrrho of Elis

360–270 BCE

Founder of Skepticism — suspend judgement to find peace.

Skepticism (Pyrrhonism)1 work
H

Hipparchia of Maroneia

350–280 BCE

Cynic who chose the ragged life over wealth — one of antiquity's few named women thinkers.

Cynicism1 work
E

Epicurus

341–270 BCE

Pleasure as tranquillity; do not fear the gods or death.

Epicureanism5 works
Z

Zeno of Citium

334–262 BCE

Founder of Stoicism — live in agreement with nature and reason.

Stoicism2 works
C

Cleanthes

330–230 BCE

The boxer-turned-Stoic who drew water by night and led the Stoa.

Stoicism2 works
A

Arcesilaus

316–241 BCE

Turned Plato's Academy skeptical — suspend judgement, act on the reasonable.

Academic Skepticism1 work
X

Xunzi

310–235 BCE

Confucian realist who held human nature is bad and must be reformed by culture.

Confucianism1 work
H

Han Feizi

280–233 BCE

Master theorist of Legalism — rule by law, method, and power, not virtue.

Legalism1 work
C

Chrysippus

279–206 BCE

The 'second founder' of Stoicism who systematized its logic.

Stoicism3 works
C

Carneades

214–129 BCE

The Academy's greatest skeptic — argued for and against justice on successive days.

Academic Skepticism1 work
K

Kaṇāda

200–140 BCE

Founder of Vaiśeṣika — an ancient Indian atomism of substances and categories.

Vaiśeṣika1 work
P

Panaetius of Rhodes

185–110 BCE

Founder of Middle Stoicism who softened the Stoa and carried it to Rome.

Stoicism2 works
P

Posidonius

135–51 BCE

The Stoic polymath who measured the earth and bound all knowledge into one system.

Stoicism1 work
C

Cicero

106–43 BCE

Roman statesman who gave Latin its philosophical vocabulary and preserved Greek thought.

Academic Skepticism6 works
L

Lucretius

99–55 BCE

Cast Epicurean physics into sublime Latin verse to free humanity from fear.

Epicureanism1 work
A

Aenesidemus

80–10 BCE

Revived Pyrrhonism and codified the 'Ten Modes' of suspending judgement.

Skepticism (Pyrrhonism)1 work
P

Philo of Alexandria

25 BCE – 50 CE

Fused the Torah with Plato; father of the allegorical reading of scripture.

Hellenistic Judaism3 works
S

Seneca

4 BCE – 65 CE

Stoic statesman and playwright who taught how to live — and how to die.

Stoicism5 works
M

Musonius Rufus

30–100 CE

The 'Roman Socrates' — philosophy is practice, and women too should study it.

Stoicism1 work
P

Plutarch

46–120 CE

Platonist priest and biographer whose Lives and Moralia shaped Western character.

Middle Platonism2 works
E

Epictetus

50–135 CE

Born a slave; taught that freedom lies in what is 'up to us'.

Stoicism2 works
M

Marcus Aurelius

121–180 CE

Roman emperor and Stoic who wrote the Meditations to himself.

Stoicism1 work
P

Patañjali

150–200 CE

Compiler of the Yoga Sūtras — the classical philosophy and psychology of yoga.

Yoga1 work
N

Nāgārjuna

150–250 CE

Founder of Madhyamaka Buddhism — the philosophy of emptiness (śūnyatā).

Madhyamaka2 works
A

Akṣapāda Gautama

150–200 CE

Founder of Nyāya — India's great school of logic, debate, and epistemology.

Nyāya1 work
S

Sextus Empiricus

160–210 CE

Systematized ancient Skepticism; our fullest source on it.

Skepticism (Pyrrhonism)2 works
P

Plotinus

204–270 CE

Founder of Neoplatonism — all reality flows from and returns to the One.

Neoplatonism1 work
P

Porphyry

234–305 CE

Plotinus' editor, whose 'Isagoge' framed a thousand years of logic.

Neoplatonism4 works
I

Iamblichus

245–325 CE

Made ritual ('theurgy') central to Neoplatonism and multiplied its divine hierarchy.

Neoplatonism2 works
A

Asaṅga

300–370 CE

Founder of Yogācāra Buddhism — the systematic path of 'consciousness-only'.

Yogācāra2 works
Ī

Īśvarakṛṣṇa

320–380 CE

Systematizer of Sāṃkhya — the dualism of consciousness (puruṣa) and nature (prakṛti).

Sāṃkhya1 work
V

Vasubandhu

350–430 CE

Co-founder of Yogācāra — 'consciousness-only' Buddhist idealism.

Yogācāra2 works
A

Augustine of Hippo

354–430 CE

Fused Christianity with Platonism and wrote the first great autobiography.

Patristics3 works
H

Hypatia of Alexandria

360–415 CE

Mathematician and Neoplatonist teacher of Alexandria, murdered by a mob.

Neoplatonism1 work
P

Proclus

412–485 CE

The last great pagan systematizer — Neoplatonism as rigorous, geometric metaphysics.

Neoplatonism3 works
B

Bodhidharma

440–530 CE

Semi-legendary first patriarch of Chan (Zen) — 'a direct pointing to the mind'.

Chan Buddhism1 work
B

Boethius

477–524 CE

'Last of the Romans, first of the Scholastics' — wrote philosophy's great prison book.

Neoplatonism3 works
P

Pseudo-Dionysius the Areopagite

480–530 CE

Anonymous mystic who fused Proclus with Christianity and gave the West negative theology.

Christian Neoplatonism2 works
D

Dignāga

480–540 CE

Founder of Buddhist logic and epistemology — the 'father of medieval Indian logic'.

Yogācāra1 work
D

Dharmakīrti

600–660 CE

The greatest Buddhist logician — perfected the epistemology of perception and inference.

Yogācāra2 works
H

Huineng

638–713 CE

Sixth Patriarch of Chan (Zen) — sudden awakening and the Buddha-nature within.

Chan Buddhism1 work
Ā

Ādi Śaṅkara

700–750 CE

Great systematizer of Advaita (non-dual) Vedānta — Brahman alone is real.

Vedānta2 works
A

Al-Kindī

801–873 CE

The 'Philosopher of the Arabs' who first married Greek philosophy to Islam.

Islamic Philosophy (Falsafa)2 works
J

John Scotus Eriugena

815–877 CE

Carolingian Irishman who built a daring Neoplatonic system of all reality.

Christian Neoplatonism2 works
A

Al-Fārābī

872–950 CE

The 'Second Teacher' after Aristotle and founder of Islamic political philosophy.

Islamic Philosophy (Falsafa)2 works
S

Saadia Gaon

882–942 CE

First great Jewish philosopher; used reason (kalām) to defend the faith.

Jewish Philosophy2 works
A

Avicenna

980–1037 CE

The supreme system-builder of Islamic philosophy and medicine.

Islamic Philosophy (Falsafa)3 works
M

Michael Psellos

1017–1078 CE

Revived Platonism in Byzantium and put philosophy back at the center of learning.

Byzantine Philosophy2 works
R

Rāmānuja

1017–1137 CE

Founder of Vishishtadvaita — qualified non-dualism and a philosophy of devotion.

Vedānta2 works
Z

Zhou Dunyi

1017–1073 CE

Founder of Neo-Confucian metaphysics — the 'Supreme Ultimate' and the diagram of cosmic order.

Neo-Confucianism2 works
S

Solomon ibn Gabirol

1021–1058 CE

Andalusian poet-philosopher whose Neoplatonism reached the Latins as 'Avicebron'.

Jewish Philosophy2 works
A

Anselm of Canterbury

1033–1109 CE

'Faith seeking understanding'; invented the ontological argument for God.

Scholasticism3 works
C

Cheng Yi

1033–1107 CE

Co-founder of Neo-Confucian 'principle' philosophy — the 'Cheng' of the Cheng-Zhu school.

Neo-Confucianism2 works
A

Al-Ghazālī

1058–1111 CE

Theologian-Sufi who challenged the philosophers and reconciled reason with mysticism.

Islamic Theology (Kalām)3 works
J

Judah Halevi

1075–1141 CE

Poet who defended the God of Abraham against the God of the philosophers.

Jewish Philosophy2 works
P

Peter Abelard

1079–1142 CE

Brilliant, combative logician of universals — and the lover of Héloïse.

Scholasticism3 works
B

Bernard of Clairvaux

1090–1153 CE

Cistercian mystic of love who distrusted Abelard's cold dialectic.

Christian Mysticism2 works
P

Peter Lombard

1096–1160 CE

Author of the 'Sentences' — the textbook every medieval theologian had to master.

Scholasticism1 work
H

Hildegard of Bingen

1098–1179 CE

Visionary abbess, composer, and natural philosopher — a rare medieval woman's voice.

Christian Mysticism3 works
A

Averroes

1126–1198 CE

'The Commentator' on Aristotle who defended philosophy against al-Ghazālī.

Islamic Philosophy (Falsafa)3 works
Z

Zhu Xi

1130–1200 CE

Great synthesizer of Neo-Confucianism — principle (li), vital force (qi), and the investigation of things.

Neo-Confucianism2 works
M

Maimonides

1138–1204 CE

The greatest Jewish philosopher; reconciled the Torah with Aristotle.

Jewish Philosophy3 works
L

Lu Jiuyuan

1139–1193 CE

Founder of the Neo-Confucian 'School of Mind' — the universe is the mind.

Neo-Confucianism1 work
S

Suhrawardī

1154–1191 CE

Founder of 'Illuminationist' philosophy — reality as gradations of light.

Illuminationism (Ishrāqī)2 works
I

Ibn ʿArabī

1165–1240 CE

The 'Greatest Master' of Sufi metaphysics and the 'unity of being'.

Sufism2 works
R

Robert Grosseteste

1168–1253 CE

Oxford's founding master of light-metaphysics and the mathematical study of nature.

Scholasticism2 works
A

Albertus Magnus

1200–1280 CE

The 'Universal Doctor' who brought Aristotle and empirical science into Christendom.

Scholasticism2 works
H

Henry of Ghent

1217–1293 CE

The most influential master between Aquinas and Scotus; defender of divine illumination.

Scholasticism1 work
R

Roger Bacon

1219–1292 CE

'Doctor Mirabilis' who championed experiment and mathematics centuries early.

Scholasticism2 works
B

Bonaventure

1221–1274 CE

The 'Seraphic Doctor' who kept Augustine and mysticism at the heart of Scholasticism.

Scholasticism2 works
T

Thomas Aquinas

1225–1274 CE

Synthesized Aristotle with Christianity — the towering system of Scholasticism (Thomism).

Scholasticism3 works
R

Ramon Llull

1232–1316 CE

Catalan visionary whose 'Art' sought a universal logic to convert the world.

Scholasticism2 works
M

Madhva

1238–1317 CE

Founder of Dvaita — thoroughgoing dualism and the eternal distinction of soul and God.

Vedānta2 works
S

Siger of Brabant

1240–1284 CE

Radical Aristotelian ('Latin Averroist') whose theses provoked the 1277 Condemnation.

Scholasticism1 work
M

Marguerite Porete

1250–1310 CE

Beguine mystic burned for a book on the soul annihilated in divine love.

Christian Mysticism1 work
M

Meister Eckhart

1260–1328 CE

Dominican mystic of the soul's 'divine spark' and detachment — union with God within.

Christian Mysticism2 works
J

John Duns Scotus

1266–1308 CE

The 'Subtle Doctor' — univocity of being, 'thisness', and the primacy of the will.

Scholasticism2 works
M

Marsilius of Padua

1275–1342 CE

Argued that political authority rises from the people — a radical medieval secularism.

Scholasticism1 work
W

William of Ockham

1287–1347 CE

Nominalist of 'Ockham's razor' who cut away universals and split faith from reason.

Scholasticism3 works
G

Gregory Palamas

1296–1359 CE

Defender of Hesychast mysticism; distinguished God's unknowable essence from his energies.

Byzantine Philosophy2 works
J

Jean Buridan

1301–1362 CE

Nominalist logician of Paris who theorized 'impetus', anticipating inertia.

Scholasticism2 works
I

Ibn Khaldūn

1332–1406 CE

Founder of the philosophy of history and a science of society.

Islamic Philosophy (Falsafa)2 works
G

Gemistos Plethon

1355–1452 CE

Last of the Byzantine Platonists who reignited Plato in the Renaissance West.

Byzantine Philosophy2 works
N

Nicholas of Cusa

1401–1464 CE

'Learned ignorance' and the coincidence of opposites — a bridge from medieval to modern.

Christian Neoplatonism2 works
N

Niccolò Machiavelli

1469–1527 CE

Founder of modern political realism — how power is actually won and kept.

Renaissance Philosophy2 works
W

Wang Yangming

1472–1529 CE

Neo-Confucian idealist of innate moral knowing and the unity of knowledge and action.

Neo-Confucianism2 works
M

Michel de Montaigne

1533–1592 CE

Inventor of the essay; a skeptical, humane inquiry into the self.

Renaissance Philosophy1 work
F

Francis Bacon

1561–1626 CE

Prophet of the scientific method — knowledge is power, built from experiment.

Empiricism2 works
T

Thomas Hobbes

1588–1679 CE

Materialist of the social contract — the state as escape from the war of all against all.

Empiricism2 works
R

René Descartes

1596–1650 CE

Father of modern philosophy — 'I think, therefore I am' and methodic doubt.

Rationalism2 works
B

Blaise Pascal

1623–1662 CE

Mathematician-mystic of the wager and the limits of reason.

Rationalism2 works
B

Baruch Spinoza

1632–1677 CE

Rationalist of the one substance — God-or-Nature, and freedom through understanding.

Rationalism2 works
J

John Locke

1632–1704 CE

Father of empiricism and liberalism — the mind a blank slate, government by consent.

Empiricism3 works
G

Gottfried Wilhelm Leibniz

1646–1716 CE

Rationalist polymath of monads and the best of all possible worlds.

Rationalism2 works
G

George Berkeley

1685–1753 CE

Idealist empiricist — 'to be is to be perceived'; no matter, only minds and ideas.

Empiricism2 works
M

Montesquieu

1689–1755 CE

Theorist of the separation of powers and the spirit of the laws.

Enlightenment2 works
V

Voltaire

1694–1778 CE

The Enlightenment's fiercest wit — tolerance, free speech, and 'crush the infamous'.

Enlightenment3 works
É

Émilie du Châtelet

1706–1749 CE

Enlightenment physicist-philosopher who synthesized Newton and Leibniz — and 'living force'.

Enlightenment3 works
D

David Hume

1711–1776 CE

The great skeptic — cause, self, and reason dissolved by experience and habit.

Empiricism3 works
J

Jean-Jacques Rousseau

1712–1778 CE

Prophet of natural goodness and the general will — 'man is born free, and everywhere in chains.'

Enlightenment3 works
A

Adam Smith

1723–1790 CE

Moral philosopher of sympathy and the 'invisible hand' of the market.

Enlightenment2 works
I

Immanuel Kant

1724–1804 CE

The Copernican revolution in philosophy — the mind shapes experience; act on universal law.

Critical Philosophy3 works
M

Mary Wollstonecraft

1759–1797 CE

Founder of modern feminist philosophy — reason and rights for women.

Enlightenment2 works
G

G. W. F. Hegel

1770–1831 CE

German Idealist of the dialectic — reality and history as the unfolding of Spirit.

German Idealism2 works
A

Arthur Schopenhauer

1788–1860 CE

Philosopher of the blind Will — pessimism, and release through art and compassion.

German Idealism1 work
J

John Stuart Mill

1806–1873 CE

The great liberal utilitarian — the greatest happiness, liberty, and the rights of women.

Utilitarianism2 works
S

Søren Kierkegaard

1813–1855 CE

Father of existentialism — truth is subjectivity, and faith is a leap.

Existentialism2 works
K

Karl Marx

1818–1883 CE

Historical materialist and critic of capital — 'the point is to change it.'

Marxism2 works
C

Charles Sanders Peirce

1839–1914 CE

Founder of pragmatism and semiotics — meaning is in practical effects.

Pragmatism2 works
W

William James

1842–1910 CE

Pragmatist and psychologist — truth is what works, and the will to believe.

Pragmatism2 works
F

Friedrich Nietzsche

1844–1900 CE

'God is dead' — the will to power, the critique of morality, and self-creation.

Existentialism2 works
G

Gottlob Frege

1848–1925 CE

Father of modern logic — quantification, sense and reference, the foundations of arithmetic.

Analytic Philosophy2 works
E

Edmund Husserl

1859–1938 CE

Founder of phenomenology — 'to the things themselves', and the structures of consciousness.

Phenomenology2 works
N

Nishida Kitarō

1870–1945 CE

Founder of the Kyoto School — 'pure experience' and the logic of 'nothingness'.

Kyoto School2 works
B

Bertrand Russell

1872–1970 CE

Logician, analytic pioneer, and public conscience — logic, language, and reason against dogma.

Analytic Philosophy2 works
L

Ludwig Wittgenstein

1889–1951 CE

Philosopher of language, twice over — the limits of language, and meaning as use.

Analytic Philosophy2 works
M

Martin Heidegger

1889–1976 CE

Thinker of Being — Dasein, being-in-the-world, and being-toward-death.

Phenomenology2 works
K

Karl Popper

1902–1994 CE

Philosopher of science and the open society — knowledge grows by refutation.

Philosophy of Science2 works
J

Jean-Paul Sartre

1905–1980 CE

Existentialist of radical freedom — 'existence precedes essence.'

Existentialism2 works
H

Hannah Arendt

1906–1975 CE

Political thinker of action, plurality, and 'the banality of evil'.

Political Philosophy2 works
S

Simone de Beauvoir

1908–1986 CE

Founder of modern feminist philosophy — 'one is not born, but becomes, a woman.'

Existentialism2 works
W

W. V. O. Quine

1908–2000 CE

Analytic naturalist — no dogma of analytic truth, and knowledge as one web of belief.

Analytic Philosophy2 works
J

John Rawls

1921–2002 CE

Reviver of political philosophy — justice as fairness, behind a veil of ignorance.

Political Philosophy2 works
T

Thomas Kuhn

1922–1996 CE

Historian-philosopher of science — 'paradigm shifts' and scientific revolutions.

Philosophy of Science1 work
F

Frantz Fanon

1925–1961 CE

Philosopher of decolonization — race, the psychology of oppression, and liberation.

Postcolonial Philosophy2 works
M

Michel Foucault

1926–1984 CE

Analyst of power and knowledge — how discipline, discourse, and norms make the subject.

Poststructuralism2 works
P

Peter Singer

1946 CE – present

Utilitarian of the expanding circle — animal liberation and effective altruism.

Utilitarianism2 works
M

Martha Nussbaum

1947 CE – present

Philosopher of capabilities and emotions — what people are actually able to do and be.

Political Philosophy2 works
D

David Chalmers

1966 CE – present

Philosopher of mind — the 'hard problem' of consciousness.

Analytic Philosophy2 works