Plato. ca 429-347 BC. Greek philosopher.

"Let no man ignorant of geometry enter here." Inscribed above the door Plato's Academy in Athens.
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Geometry will draw the soul toward truth and create the spirit of philosophy



The knowledge of which geometry aims is the knowledge of the eternal.



Then, my noble friend, geometry will draw the soul towards truth, and create the spirit of philosophy, and raise up that which is not unhappily allowed to fall down.
The Republic, VII, 52.