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Daily Inspiration Quote by Andre Weil

"God exists since mathematics is consistent, and the Devil exists since we cannot prove it"

About this Quote

Weil’s line lands like a perfectly timed proof by contradiction: it flatters the mathematician’s faith in structure, then yanks the rug out with the discipline’s most humiliating boundary. “God exists since mathematics is consistent” isn’t theology so much as a private joke about what mathematicians really worship: coherence. Consistency is the condition that makes the whole project feel like more than symbol-shuffling. If the axioms don’t implode, the world looks inhabitable; order feels earned. So “God” becomes shorthand for the miracle that the formal universe doesn’t collapse into nonsense.

Then comes the darker punchline: “the Devil exists since we cannot prove it.” After Godel, every serious mathematician knows the curse: sufficiently rich systems can’t certify their own consistency from within. The inability to prove consistency isn’t just a technical limit; it’s an existential irritant. Weil names that irritant “the Devil,” the impish force that lives in the gap between what we can build and what we can justify. The joke works because it turns a famously austere result into a moral drama: angels on the side of elegant structure, demons in the fine print.

Subtextually, Weil is also tweaking the cultural prestige of mathematics. We sell it as certainty, the last clean room in a messy world. He reminds you that the certainty is conditional, always leaning on assumptions you don’t get to cash out inside the system. The line is witty because it refuses consolation: even in math, paradise depends on an unprovable promise, and the serpent is formal.

Quote Details

TopicReason & Logic
SourceHelp us find the source
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Citation Formats

APA Style (7th ed.)
Weil, Andre. (2026, January 18). God exists since mathematics is consistent, and the Devil exists since we cannot prove it. FixQuotes. https://fixquotes.com/quotes/god-exists-since-mathematics-is-consistent-and-9916/

Chicago Style
Weil, Andre. "God exists since mathematics is consistent, and the Devil exists since we cannot prove it." FixQuotes. January 18, 2026. https://fixquotes.com/quotes/god-exists-since-mathematics-is-consistent-and-9916/.

MLA Style (9th ed.)
"God exists since mathematics is consistent, and the Devil exists since we cannot prove it." FixQuotes, 18 Jan. 2026, https://fixquotes.com/quotes/god-exists-since-mathematics-is-consistent-and-9916/. Accessed 12 Feb. 2026.

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Andre Weil: Mathematics, Consistency and the Devil
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About the Author

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Andre Weil (May 6, 1906 - August 6, 1998) was a Mathematician from France.

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