"Reason is immortal, all else mortal"
About this Quote
The intent is partly evangelistic: to sell a discipline of living anchored to what can’t rot. Pythagorean communities treated mathematics as moral training. Under that lens, “immortal” isn’t a comforting promise; it’s a demand. If reason is the only thing that outlasts you, you’re being dared to align your life with it - to prefer the clean severity of proof over the noisy seductions of appetite, politics, and status.
The subtext also smuggles in a hierarchy: whatever can be counted, demonstrated, or harmonized is more real than whatever merely happens. That’s a foundational move in Western thought, and it comes with a cost. It flatters the mind, demotes the body, and implies that the highest kind of survival is impersonal - your mortality redeemed not by memory or love, but by participation in an order that never needed you in the first place.
Quote Details
| Topic | Reason & Logic |
|---|---|
| Source | Later attribution: Pythagoras (Pythagoras) modern compilation
Evidence: 06 by thomas benfield harbottle p 370 reason is immortal all else mortal as quot Other candidates (1) Reasons (Eric Wiland, 2012) compilation83.3% ... Reason is immortal, all else mortal.”—PYTHAGORAS “Fortune but seldom interferes with the wise person; his greates... |
| Cite |
Citation Formats
APA Style (7th ed.)
Pythagoras. (2026, February 15). Reason is immortal, all else mortal. FixQuotes. https://fixquotes.com/quotes/reason-is-immortal-all-else-mortal-71018/
Chicago Style
Pythagoras. "Reason is immortal, all else mortal." FixQuotes. February 15, 2026. https://fixquotes.com/quotes/reason-is-immortal-all-else-mortal-71018/.
MLA Style (9th ed.)
"Reason is immortal, all else mortal." FixQuotes, 15 Feb. 2026, https://fixquotes.com/quotes/reason-is-immortal-all-else-mortal-71018/. Accessed 25 Mar. 2026.










