Plato(428 av. J.-C. — 348 av. J.-C.)

Plato

Athènes

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PhilosophyPhilosopheAntiquity4th–5th century BC, Classical period of ancient Greece

Ancient Greek philosopher (428–348 BC), founder of the Academy in Athens. A student of Socrates, he developed the Theory of Forms, arguing that the visible world is merely a shadow of an intelligible reality. His influence on Western thought is foundational.

Frequently asked questions

Plato, whose real name was Aristocles, was born in Athens in 428 BC into an aristocratic family. What makes him decisive is that he founded the Academy around 387 BC, the first institution of higher learning in the West, and developed the Theory of Forms, according to which the sensible world is merely an imperfect copy of a perfect intelligible reality. Imagine a student of Socrates who, after his teacher's death, decided to transmit his method through written dialogues: that is what made Plato the cornerstone of Western philosophy.

Famous Quotes

« The visible world is a prison; the intelligible world is freedom. »
« Knowledge is recollection. »
« No one does wrong willingly. »

Key Facts

  • 428 BC: Born in Athens
  • 407–404 BC: Decisive encounter with Socrates and the beginning of his philosophical commitment
  • 387 BC: Foundation of the Academy of Athens, the first institution of higher learning in the Western world
  • 380 BC: Writing of the Republic, his major work presenting the Theory of Forms
  • 348 BC: Death in Athens at the age of 80

Works & Achievements

The Apology of Socrates (c. 399–390 BC)

A reconstruction of Socrates' defense speech at his trial. It is Plato's earliest work — an act of loyalty to his condemned master — and the first exposition of the Socratic philosophical ideal.

The Symposium (c. 385 BC)

A dialogue devoted to love (Eros), presented as a series of speeches at a banquet. Plato sets out his famous theory of the ascent through love toward absolute Beauty — the foundation of what we call 'platonic love'.

The Republic (Politeia) (c. 380 BC)

Plato's masterwork in ten books, devoted to justice and the ideal city-state governed by philosophers. It contains the Allegory of the Cave, the most famous image in Western philosophy, used to illustrate the Theory of Forms.

Phaedo (c. 385–380 BC)

A dialogue recounting Socrates' final hours before he drinks the hemlock. Plato develops his arguments for the immortality of the soul and offers an in-depth exposition of the Theory of Forms.

Meno (c. 385 BC)

A dialogue on the nature of virtue and whether it can be taught. Plato develops his theory of recollection: learning is not the acquisition of new knowledge, but the remembering of what the soul contemplated before it took bodily form.

Timaeus (c. 360 BC)

A late dialogue devoted to cosmology and the creation of the world. It was the most widely read of Plato's works in medieval Europe, deeply influencing Christian theology and the medieval vision of the universe.

The Laws (Nomoi) (c. 350 BC)

Plato's last dialogue, left unfinished at his death. In it he revises the political ideal of The Republic, proposing a 'second-best' city — more realistic, governed by precise laws rather than solely by the wisdom of philosophers.

Anecdotes

Plato was not his real name: he was actually born Aristocles. The nickname 'Plato' is said to have been given to him by his wrestling coach, referring to his broad shoulders (platys means 'broad' in Greek). This detail reveals that the greatest philosopher of the Western world was also an accomplished athlete, having competed in the Isthmian Games.

After Socrates' death in 399 BC, Plato was so shaken that he left Athens and traveled for several years through Egypt, southern Italy, and Sicily. In Sicily, he hoped to convince the tyrant Dionysius I of Syracuse to rule according to philosophical principles, but failed and nearly ended up sold into slavery.

Plato founded the Academy around 387 BC in a garden dedicated to the hero Akademos, near Athens. It was the first institution of higher learning in the Western world, where students studied mathematics, astronomy, philosophy, and politics. An inscription at the entrance reportedly read: 'Let no one ignorant of geometry enter here.'

Aristotle, his most famous student, joined the Academy at the age of 17 and remained there for twenty years until Plato's death. Despite the deep respect he held for his teacher, Aristotle ultimately rejected the Theory of Forms, arguing that universal forms did not exist separately from concrete things. This fundamental philosophical disagreement between master and pupil went on to shape the entire course of Western philosophy.

Primary Sources

The Republic (Politeia) (c. 380 BC)
Imagine men living in an underground dwelling shaped like a cave... Throughout their lives they have seen neither their own bodies nor those of others — nothing but the shadows cast by the fire on the wall of the cave.
The Symposium (Symposion) (c. 385 BC)
One who wishes to pursue this goal in the right way must begin from youth to seek out beautiful bodies... and then recognize that the beauty found in one body is akin to that found in another.
Phaedo (c. 385–380 BC)
Is death anything other than the separation of the soul from the body? To be dead — is it not that the body, separated from the soul, subsists alone by itself, and the soul, separated from the body, subsists alone by itself?
The Apology of Socrates (c. 399–390 BC)
The unexamined life is not worth living. This is what I maintain, men of Athens, and it is not easy to convince you of it.
Meno (c. 385 BC)
Seeking and learning are, in sum, nothing but recollection. Virtue cannot be taught — it is remembered by the soul that already carries it within.

Key Places

The Academy, Athens

A garden located about 1.5 km northwest of Athens, dedicated to the hero Academus, where Plato founded his school around 387 BC. This place of teaching and collective inquiry remained active for nearly nine centuries.

The Agora of Athens

The central public square of Athens where Socrates, Plato's teacher, would teach by engaging citizens in conversation. It was here that the young Plato first met Socrates — an encounter that changed the course of his life and the history of thought.

Syracuse, Sicily

A Greek city in Sicily ruled by the tyrants Dionysius I and then Dionysius II. Plato traveled there three times in an attempt to realize his political ideal of a philosopher-king, but each visit ended in bitter failure.

Piraeus, port of Athens

The great commercial port of Athens, a cosmopolitan hub where cultures from across the Mediterranean world mingled. The Republic opens precisely at Piraeus, during the festival of the goddess Bendis — a detail not without symbolic meaning for a dialogue about justice and the ideal city.

See also