Man is not rational; there is intelligence only in what encompasses him.
 Heraclitus, On Nature (c. 535 – c. 475 BCE). copy citation

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Author Heraclitus
Source On Nature
Topic intelligence
Date c. 535 – c. 475 BCE
Language English
Reference
Note Translated by William Harris
Weblink http://community.middlebury.edu/~harris/Philosophy/heraclitus.pdf

Context

“In Hades souls perceive by smelling. (98) 60. Corpses are more fit to be thrown out than dung. (96) ON THE DIVINE 61. Human nature has no real understanding; only the divine nature has it. (78) 62. Man is not rational; there is intelligence only in what encompasses him. 63. What is divine escapes men's notice because of their incredulity. (86) 64. Although intimately connected with the Logos, men keep setting themselves against it. (72) 65. As in the nighttime a man kindles for himself” source