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Pyrrho

Original namePyrrho of Elis

Ancient Greek Philosopher, Founder of the Skeptic School

Those Who Ground an Idea Into a Whole System · Disciples & School-Builders

SkepticismSuspension of JudgmentTranquility of Mind

Who they are

Pyrrho (c. 360–270 BC) was the founder of the ancient Greek Skeptic school, who left no writings of his own, his thought coming down mainly through the reports of his student Timon and the systematic compilation of the later skeptic philosopher Sextus Empiricus. He held that, since human sensory experience and rational judgment are both unreliable, and there are often mutually contradictory views of the same thing, one should "suspend judgment" (epoché) on the nature of all things, asserting neither "is" nor "is not," and that only so can one escape the anxiety that comes of clinging to some belief in certainty and attain true tranquility of mind (ataraxia). By tradition he once traveled to India with the expeditionary army of Alexander the Great and encountered the local naked ascetics (perhaps early Indian sages), an experience also thought to have had some influence on the formation of his skeptical thought.

Primary sourcesSextus Empiricus, Outlines of Pyrrhonism

Key stories

A Philosophical Journey on the Expedition to India

In his youth Pyrrho joined the expeditionary army of Alexander the Great on its march to India, where, by tradition, he encountered Indian sages who advocated asceticism and a life of detachment from things; this cross-cultural philosophical contact is seen by later scholars as one early instance of possible intellectual exchange between ancient Greek skepticism and the Indian philosophical tradition, though the precise degree of influence is hard to establish.

The Extreme Practice of Suspending Judgment

By tradition Pyrrho carried the principle of "suspending judgment" to a near-dangerous degree, is said to have made no judgment or reaction to the dangers his senses reached — oncoming carts, sheer cliffs — relying entirely on friends at hand to watch out for and save him from mishap. The truth of such anecdotes is doubtful, more likely a later exaggeration to highlight the extreme thoroughness of his philosophical stance.

Relationships

Nemesis

📚Aristotle　Skepticism raised a fundamental challenge to Aristotle’s systematized epistemological stance

Echoes today

Below are how modern works borrow or reinterpret this name or story — not the original material. The two differ, so keep them apart.

"Pyrrhonism" (a term in the history of philosophy)In modern philosophy of science and epistemology, "Pyrrhonian skepticism" is still a classic reference point for discussing whether "a thoroughgoing suspension of judgment is feasible."

Appears in

The Hellenistic and Roman Ethical SchoolsPyrrho’s Skepticism and "Suspending Judgment"

⏳ Who lived at the same time as Pyrrho? →❔ Skepticism →🔗 Who taught whom →

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