Protagoras Quotes on Knowledge
Protagoras of Abdera was a Greek thinker traditionally counted as the first of the Sophists. This page collects quotes attributed to Protagoras on the topic of knowledge, drawn from across the philosopher's works.
Quotes
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Attributed to Protagoras:
“Man is the measure of all things: of those that are, that they are; of those that are not, that they are not.”
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Attributed to Protagoras:
“Concerning the gods, I am unable to know whether they exist or do not exist, nor what their nature is; many things prevent such knowledge: the obscurity of the matter and the brevity of human life.”
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Attributed to Protagoras:
“About every matter there are two arguments opposed to each other.”
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Attributed to Protagoras:
“Education does not take root in the soul unless one goes deep.”
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Attributed to Protagoras:
“Virtue can be taught.”