Skeptics
Key Idea
“Suspend judgment. Certainty is beyond us, but peace is not.”
Overview & Origins
Pyrrho pioneered radical doubt: since we cannot know the true nature of things, we should suspend judgment entirely. The result is not confusion but tranquility. Later skeptics in Plato's Academy continued the tradition, turning doubt into a philosophical method.
The Skeptics, emerging in the Hellenistic period around the 4th century BCE, were profoundly shaped by Pyrrho of Elis, who introduced radical doubt as a path to tranquility. Pyrrho argued that the true nature of reality is inaccessible to human perception and reason, rendering certainty impossible. By suspending judgment—epochē—one could achieve ataraxia, a state of serene detachment. This philosophy was later refined by thinkers in Plato’s Academy, particularly Arcesilaus and Carneades, who transformed skepticism into a rigorous method of inquiry, challenging dogmatic claims across metaphysics, ethics, and epistemology. The Skeptics’ enduring legacy lies in their insistence on intellectual humility and their profound influence on later philosophical traditions, including modern empiricism and existentialism. Their radical doubt remains a timeless reminder of the limits of human knowledge and the pursuit of inner peace.
Core Tenets
Radical Doubt
The Skeptics assert that certainty about the true nature of reality is unattainable, urging the suspension of judgment.
Ataraxia
By suspending judgment, one achieves tranquility and freedom from mental disturbance.
Philosophical Method
Skepticism is not mere doubt but a disciplined method of questioning dogmatic assertions.
Philosophers of this Tradition
Pyrrho
Suspend judgment. The world as we think we know it may not be the world at all.
Carneades
Sent to Rome as an ambassador, he gave a public lecture arguing for justice one day and a devastating lecture against it the next, and was expelled from the city for making truth look too easy to argue either way.
Canonical Works
Pyrrho wrote nothing. His student Timon of Phlius and later Sextus Empiricus preserved his radical teaching: that we should suspend judgment about all things, and in that suspension find peace.
Stories about Pyrrho told by Diogenes Laertius. They paint a man who lived his philosophy: indifferent to danger, unmoved by circumstance, serene in the face of everything.
Core Ideas & Concepts
Voices & Maxims
“Nothing is in itself more this than that.”
“The wise man will sometimes even give his opinion on things about which he cannot be certain, provided he distinguishes and warns that the matter is not certain.”
“Justice, if it existed at all, would consist in an equal regard for the interests of all — but no nation that means to be great can practice it.”