Quest2ReasonClimb the mountain, sharpen your mind.

The schools

Ideas

55 schools of thought, from the ancient world to today. Search for a thinker or an idea, or group the schools by era, tradition or name.

All schools

CharvakaBrihaspati (traditional founder), Purandara and, by some accounts, Jay…Non-Vedic traditionsc. 600 BCE onward3 lessonsJainismMahavira, in a much older lineageNon-Vedic traditionsc. 6th to 5th c. BCE3 lessonsConfucianismConfucius, Mencius, XunziChinese philosophyc. 500 BCE8 lessonsThe PresocraticsHeraclitus, Parmenides, Zeno and the early atomistsAncient Greek and Romanc. 500 BCE4 lessonsBuddhismSiddhartha GautamaNon-Vedic traditionsc. 5th c. BCE3 lessonsThe SophistsProtagoras, Gorgias and other paid teachers in AthensAncient Greek and Romanc. 450 BCE3 lessonsMohismMozi and the later MohistsChinese philosophyc. 430 BCE3 lessonsDaoismLaozi, ZhuangziChinese philosophyc. 400 BCE2 lessonsPlatonismPlatoAncient Greek and Romanc. 400 BCE5 lessonsCynicismAntisthenes, Diogenes, CratesAncient Greek and Romanc. 380 BCE2 lessonsAristotelianismAristotleAncient Greek and Romanc. 340 BCE7 lessonsEpicureanismEpicurusAncient Greek and Romanc. 307 BCE6 lessonsPyrrhonismPyrrho of Elis, Sextus Empiricus and AgrippaAncient Greek and Romanc. 300 BCE3 lessonsStoicismZeno of Citium, Epictetus, Marcus Aurelius, SenecaAncient Greek and Romanc. 300 BCE12 lessonsZhuangzi’s DaoismZhuangziChinese philosophyc. 300 BCE3 lessonsLegalismHan FeiChinese philosophyc. 250 BCE2 lessonsMimamsaJaiminiIndian philosophy, the orthodox schoolsc. 3rd c. BCE to 2nd c. CE3 lessonsVaisheshikaKanadaIndian philosophy, the orthodox schoolsc. 2nd c. BCE to 1st c. CE2 lessonsMadhyamakaNagarjuna, ChandrakirtiNon-Vedic traditionsc. 150 CE4 lessonsNyayaAkshapada GautamaIndian philosophy, the orthodox schoolsc. 2nd c. CE (text)3 lessonsNeoplatonismPlotinus, Porphyry and ProclusAncient Greek and Romanc. 250 CE3 lessonsSamkhyaKapila (by tradition), IshvarakrishnaIndian philosophy, the orthodox schoolstext c. 350 CE2 lessonsYogaPatanjaliIndian philosophy, the orthodox schoolstext c. 400 CE2 lessonsThe Poet-SagesThiruvalluvar, Kabir and the bhakti poetsPhilosophy lived in communityc. 300 BCE to 1500 CE3 lessonsZenBodhidharma, Huineng, Dogen, HakuinChinese philosophyfrom c. 500 CE5 lessonsVedantaThe Upanishads, Shankara and later commentatorsIndian philosophy, the orthodox schoolsUpanishads onward; Shankara c. 8th c. CE6 lessonsFalsafaAl-Kindi, Al-Farabi, Ibn SinaFaith and reason, 1000 to 1700c. 1020 CE6 lessonsThe MasnaviJalal al-Din RumiFaith and reason, 1000 to 1700c. 1258 CE2 lessonsScholasticismAnselm, Thomas Aquinas, Duns Scotus, William of OckhamFaith and reason, 1000 to 1700c. 1270 CE10 lessonsIbn Khaldun’s science of societyIbn Khaldun of Tunis, author of the MuqaddimahFaith and reason, 1000 to 170013773 lessonsIndigenous philosophiesHaudenosaunee, Māori, Lakota and other Indigenous knowledge keepersPhilosophy lived in communityLiving traditions3 lessonsRationalismDescartes, Spinoza, LeibnizEnlightenment and knowledge1637 onward7 lessonsThe social contractHobbes, Locke, Rousseau, RawlsEnlightenment and knowledge1651 onward21 lessonsEmpiricismLocke, Berkeley, HumeEnlightenment and knowledge1689 onward5 lessonsSor Juana’s right to studySor Juana Inés de la CruzFaith and reason, 1000 to 170016913 lessonsThe philosophesVoltaire, Montesquieu, DiderotEnlightenment and knowledgec. 17506 lessonsKantianismImmanuel KantEnlightenment and knowledge1781 onward6 lessonsUtilitarianismBentham, Mill, SingerEnlightenment and knowledge1789 onward4 lessonsFeminist philosophyWollstonecraft, Gilligan, Noddings, Harding, CrenshawModern and contemporary1792 onward4 lessonsHegelian dialecticG. W. F. Hegel, after Kant, Fichte and SchellingHistory, power and critique1807 onward3 lessonsExistentialismKierkegaard, SartreExistence and experience1843 onward4 lessonsMarxismKarl Marx and Friedrich EngelsHistory, power and critique1844 onward3 lessonsPragmatismPeirce, James, DeweyModern and contemporary1878 onward5 lessonsNihilismNietzscheExistence and experience1880s7 lessonsPhenomenologyHusserl, Heidegger, Merleau-PontyExistence and experience1900 onward9 lessonsAnalytic philosophyFrege, Russell, Moore, WittgensteinModern and contemporaryc. 1900 onward3 lessonsSatyagrahaMohandas GandhiPhilosophy lived in community1906 onward3 lessonsThe Kyoto SchoolNishida Kitaro, Tanabe Hajime and Nishitani KeijiModern and contemporary1911 onward3 lessonsCritical theoryHorkheimer, Adorno, Marcuse and Habermas, with Gramsci and, in a relat…History, power and critique1937 onward4 lessonsAbsurdismAlbert CamusExistence and experience19425 lessonsThe ethics of ambiguitySimone de BeauvoirExistence and experience19473 lessonsArendt’s politics of actionHannah ArendtModern and contemporary1951 onward3 lessonsBearing witnessMaya AngelouPhilosophy lived in community1969 onward3 lessonsAkan philosophyKwasi Wiredu, Kwame Gyekye and the Akan wisdom traditionPhilosophy lived in communityTraditional; written works from 19803 lessonsUbuntuThe Nguni proverb, Desmond Tutu, Nelson MandelaPhilosophy lived in communitySouthern African proverb4 lessons