Pythagoras — "Don't eat your heart."
Don't eat your heart.
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More from Pythagoras
"Don't share your roof with swallows."
"The oldest and shortest words, 'yes' and 'no,' are those which require the most thought."
"Don't offer your right hand too easily."
"The most beautiful thing is harmony."
"Anger begins with folly and ends with repentance."
About Pythagoras (c. 570-495 BCE)
Greek philosopher and mathematician whose school in Croton combined geometry (the Pythagorean theorem), number-mysticism, and a religious-vegetarian way of life. Closely associated with Thales of Miletus (earlier pre-Socratic and the first philosopher). For an intellectual contrast, see Heraclitus, pre-Socratic Greek philosopher of flux — Heraclitus called Pythagoras 'the chief of swindlers' — among the founding insults of the philosophical-rivalry tradition. Their 'all is flux' vs 'all is number' poles still organize the philosophy of mathematics today (Platonist vs anti-realist).
Details
A Pythagorean 'Symbol', interpreted by Diogenes Laertius as 'not wearing away your mind with troubles and grief'.
Date: c. 570-495 BCE (interpreted 3rd century CE)
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Understanding this quote
What it means
Don't torment yourself with anxiety, grief, or regret over things beyond your power. Stop obsessing over past mistakes or worrying about futures you cannot control — that internal gnawing destroys you from within. Excessive rumination depletes mental energy without producing any useful result. Recognize what you can change, act on it, then release the rest rather than letting unresolvable troubles consume your peace and clarity.
Relevance to Pythagoras
Pythagoras founded a philosophical brotherhood in Croton governed by strict behavioral rules — the akousmata — covering diet, speech, and emotional conduct. He believed the soul required purification through rational self-mastery. His famous prohibitions against beans and meat reflected his conviction that what one consumes shapes the soul. This maxim extends that logic inward: emotional self-torment corrupts inner harmony just as impure intake corrupts the body.
The era
Pythagoras lived in the 6th century BCE, before Stoicism formally codified emotional self-discipline. Greek culture prized public honor and communal ritual but offered little guidance for managing private grief or anxiety. His community-based philosophical school was radical — it treated inner emotional regulation as essential to a virtuous life. In an era of city-state rivalries and frequent war, systematic teaching on not self-destructing through worry was genuinely novel.
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