Parmenides
What is, is. What is not, cannot be thought. Change is an illusion.
Where Heraclitus saw flux, Parmenides saw permanence. In a single philosophical poem, he argued that change, motion, and multiplicity are impossible, that only Being exists, whole and unchanging. The argument sounds absurd, but it forced every thinker after him to account for it. Plato revered him. Aristotle wrestled with him. The problem of Being has never gone away.
What survives
His book is lost. 7 lines survive, each because a later writer quoted it.
Places
Ideas
Words
“What is, is. What is not, cannot be.”
“It is the same thing that can be thought and that can be.”
Works
On Nature
fragmentaryA philosophical poem in two parts: the Way of Truth and the Way of Appearance. Argues that reality is one, unchanging, and indivisible. The most radical metaphysical claim in ancient philosophy.
On Mind
fragmentaryOne sentence is all that survives in Leucippus' own words, and it states the principle atomism was built on: that nothing is arbitrary. His larger book, The Great World-System, is lost, and ancient readers already disagreed over whether it was his or his student's.
Life & Moments
Born at Elea
Born in Elea, a Greek colony in southern Italy founded by refugees from Ionian politics and Persian pressure.
Born in Elea
Parmenides is born around 515 BCE in Elea, a small Greek colony on the Italian coast. The city is quiet, away from the trade routes and intellectual noise of the Aegean. He grows up there and, as far as we know, spends most of his life there, writing a poem that insists movement and change are illusions.
Writes Philosophical Poem
Around 490 BCE Parmenides composes a poem in hexameter verse, the meter of Homer, in which a goddess leads him to two roads: the way of truth and the way of seeming. The way of truth argues that what is, is; what is not, cannot be thought or spoken. Change, plurality, motion, these belong to the road of illusion. Only being exists, whole and without parts. The argument is strange and forceful and Greek philosophy never quite recovers from it.
The Poem of Being
Parmenides cast philosophy as a journey in verse: a goddess reveals the way of truth and the way of opinion. Being is; non-being cannot be thought.
Founds the Eleatic School
Parmenides gathers students in Elea and teaches them to argue with precision. Zeno is the most famous, he invents paradoxes to defend his teacher's claim that motion is impossible. The Eleatic school does not produce a system so much as a method: press every claim until it either holds or breaks. That habit of rigorous questioning shapes Plato and, through him, almost everything after.
Zeno Defends Elea
His student Zeno devised paradoxes of motion to show that common sense about change leads to contradiction. Father and pupil together challenged the whole Greek world.
Visit to Athens
Plato's dialogue portrays a young Socrates meeting the aged Parmenides. The meeting may be fictional, but it names a real intellectual debt.
Death at Elea
Parmenides died in the city that gave his school its name. Eleatic philosophy would survive through Zeno and Melissus, and echo in Plato's forms.
Meets the Young Socrates
Plato records that Parmenides visited Athens around 450 BCE with his student Zeno, when Socrates was still young. In the dialogue named for him, an aged Parmenides questions Socrates' theory of forms with precision and care: not to destroy it, but to test it. The encounter, whether historical or imagined, makes visible the argument that Greece has been having with itself about being and knowledge.
Influence
Influenced by
- Xenophanes
Ancient tradition made Xenophanes the teacher of Parmenides and the first of the Eleatics; whether or not they ever met, his argument that there is one god unlike mortals in body or thought set the direction Parmenides followed.
Influenced
- Plato
Plato named a dialogue after Parmenides and considered him the most formidable of the pre-Socratics. The theory of Forms is partly a response to the Eleatic challenge.
- Empedocles
Empedocles accepted Parmenides' argument that nothing can come from nothing, then rescued the changing world by making it a mixture of four unchanging roots. Change became rearrangement rather than creation.
- Zeno of Elea
Zeno wrote his paradoxes to defend Parmenides: if motion and plurality lead to absurdity, then a single unchanging being is the less strange conclusion.
- Leucippus
Atomism was an answer to Parmenides: Leucippus granted that being cannot come from nothing, then broke the argument by insisting that not-being, meaning empty space, exists after all, which let motion back into the world.
