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Gorgias

c. 483–376 BCE

A first way ina deliberate simplification – the portrait says more

Nothing can be proven to exist, be known or be communicated – which makes persuasive speech, not truth, the real power over people.

Placement

Ancient Greek · Southern Europe · Language, Epistemology

Sophist and master of rhetoric from Leontini: nothing exists; if it did, it could not be known; if known, it could not be communicated.

Key ideas

  • On Non-Being
  • The power of speech (logos)
  • Rhetoric

Students: Antisthenes

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Influence

Influenced by 3

  • Parmenides

    influenced by

    In On Not-Being Gorgias turned Parmenides’ form of argument against Eleatic being: nothing is; if it were, it could not be known; if known, not communicated. Sextus Empiricus, Against the Logicians I.65–87; pseudo-Aristotle, On Melissus, Xenophanes and Gorgias; IEP “Gorgias”

    Evidence: AI draft

    Parmenides › c. 515–450 BCE

  • Empedocles

    influenced by ✓

    In Plato’s Meno Socrates defines colour ‘in the manner of Gorgias’ with Empedocles’ effluences and pores; ancient tradition makes Gorgias Empedocles’ pupil (Meno 76c–e; Diogenes Laertius VIII.58). Plato, Meno 76c–e; Diogenes Laertius VIII.58 (Satyrus); IEP “Gorgias”

    Evidence: also in Wikidata · Wikidata · InPhO

    Empedocles › c. 494–434 BCE

  • Zeno of Elea

    influenced by

    Gorgias’ On Not-Being reworked Zeno’s method of deriving contradictions from a thesis; the version in the pseudo-Aristotelian MXG draws on arguments of Zeno and Melissus. pseudo-Aristotle, On Melissus, Xenophanes and Gorgias (Gorgias section); R. Ioli, ‘Between Eleatics and Atomists: Gorgias’ Argument against Motion’, Archai 31 (2021); IEP “Gorgias”

    Evidence: AI draft

    Zeno of Elea › c. 490–430 BCE

Influenced 1

  • Antisthenes taught

    taught later tradition

    Known only from later tradition (Diogenes Laertius 6.1), which ties it to the rhetorical style of his dialogues; the report may be an inference from that style. Diogenes Laertius 6.1

    Evidence: AI draft

    Antisthenes › c. 445–365 BCE

Works

  • c. 440 BCEOn Non-Being

    Nothing exists; if anything existed, it could not be known; if it could be known, it could not be communicated.

  • A rhetorical showpiece that clears Helen of blame – and praises speech as a “mighty lord”.

Position

In On Non-Being Gorgias turned the arguments of the Eleatics against themselves: nothing exists; if anything existed, it could not be known; and if it could be known, it could not be communicated, since words are not the things they name. Whether this was meant seriously or as brilliant parody remains disputed. His Encomium of Helen praises speech as a “mighty lord” that acts on the soul as drugs act on the body, calming fear, kindling joy and persuading against one’s will. Plato answered him in the dialogue named after him, criticizing rhetoric without knowledge; yet Gorgias’ ornate prose shaped Greek and later European oratory.

Life & context

Gorgias came from Leontini in Sicily and, according to ancient tradition, studied with Empedocles. In 427 BCE he led an embassy from his city to Athens, where his dazzling speeches caused a sensation. He then taught rhetoric for high fees across Greece; Isocrates was among his pupils. He is said to have lived past a hundred and to have died in Thessaly.

Further main works

  • Defence of Palamedes (late 5th century BCE)

Sources: Wikipedia · Wikidata

As of November 2026 · Sources · Improve this page · How Agora is made

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