Pythagoras of Samos (570 BCE – 495 BCE) was an historic Ionian Greek thinker and the eponymous founding father of Pythagoreanism. His political and spiritual teachings had been well-known in Magna Graecia and influenced the philosophies of Plato, Aristotle, and, by way of them, Western philosophy.
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Pythagoras’ cropped picture within the thumbnail from Allan Gluck, CC BY 4.0 ( through Wikimedia Commons

