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Greek Philosophers

Major Greek philosophers and their key ideas

20 cards · philosophy

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Cards (20)

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ThalesWater is the arche
c. 624–546 BC; sought natural causes; reputed to predict an eclipse.
AnaximanderThe apeiron is the origin
The boundless generates and governs opposites; early mapmaker and astronomer.
AnaximenesAir is the arche; change by rarefaction/condensation
Explained change by air’s density; last of the Milesian monists.
PythagorasNumber is the essence of things
Founded a religious–mathematical brotherhood; taught soul transmigration.
XenophanesCritique of anthropomorphic gods
Said oxen would draw ox-like gods; posited a greatest god unlike mortals.
HeraclitusPerpetual flux; Logos orders change
Unity of opposites; fire as image of process and transformation.
ParmenidesBeing is one; change is illusory
In his poem, reason reveals ungenerated, undying, unchanging Being.
Zeno of EleaParadoxes of motion
Achilles, arrow, and dichotomy puzzles defend Eleatic monism.
EmpedoclesFour elements; Love and Strife
Cosmic cycles mix and separate the elements under two opposing forces.
AnaxagorasNous orders a cosmos of mixed 'seeds'
Introduced Mind as cosmic cause; offered natural accounts of eclipses.
DemocritusAtomism: indivisible atoms in the void
Mechanistic explanations of nature; ethical ideal of cheerful serenity.
Protagoras'Man is the measure' relativism
Leading Sophist; truth and value vary with perceiver and city.
SocratesSocratic method of questioning
470–399 BC; executed by Athens; wrote nothing himself; known via students.
PlatoTheory of Forms
Transcendent universals ground knowledge; founded the Academy.
AristotleFour causes explain change and being
Material, formal, efficient, and final causes structure explanations.
Diogenes of SinopeCynic asceticism: live according to nature
Praised self-sufficiency and shamelessness; legendarily lived in a tub.
PyrrhoSuspend judgment to attain tranquility
Epoché avoids dogma; ataraxia follows withholding assent.
EpicurusPleasure is the highest good
Sought ataraxia via simple living; gods are indifferent; no fear of death.
Zeno of CitiumVirtue is the only good; live per nature
Founded the Stoa; apatheia and indifferents figure in ethics.
ChrysippusSystematized Stoic logic
Architect of Stoicism; advanced propositional logic and compatibilism.