"The irrationality of a thing is no argument against its existence, rather a condition of it"
About this Quote
The intent is tactical. Nietzsche is attacking the moral-philosophical move that smuggles values in under the banner of rational necessity. When people dismiss religion, myth, or instinct as “irrational,” they usually mean “illegitimate.” Nietzsche replies: nice try. The world did not ask for your permission to be messy. If anything, the demand that reality conform to rational standards is the oddity - a psychological craving for control, predictability, and innocence.
Context matters: late 19th-century Europe is drunk on science, progress, and system-building philosophy, while Nietzsche is diagnosing a culture sliding into nihilism after the “death of God.” He’s warning that debunking irrational structures doesn’t delete them; it just drives them underground, where they return as politics, mass movements, moral panics. The sting is that rationalism, too, has its irrational core: a faith in reason as salvation. Nietzsche’s wager is that honesty begins where our justifications fail.
Quote Details
| Topic | Reason & Logic |
|---|---|
| Source | Unverified source: Human, All-Too-Human (Part II: The Wanderer and His Shadow) (Friedrich Nietzsche, 1880)
Evidence: That something is irrational is no argument against its existence, but rather a condition for it. (Aphorism 515 (in the section commonly titled “Man Alone by Himself” / “Der Mensch mit sich allein”)). The wording you supplied (“The irrationality of a thing…”) appears to be a very close variant of... Other candidates (1) The Law and Economics of Irrational Behavior (Francesco Parisi, Vernon L. Smith, 2005) compilation95.0% Francesco Parisi, Vernon L. Smith. Francesco Parisi and Vernon Smith Friedrich Nietzsche ( 1878 ) once wrote , “ The ... |
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Citation Formats
APA Style (7th ed.)
Nietzsche, Friedrich. (2026, February 18). The irrationality of a thing is no argument against its existence, rather a condition of it. FixQuotes. https://fixquotes.com/quotes/the-irrationality-of-a-thing-is-no-argument-293/
Chicago Style
Nietzsche, Friedrich. "The irrationality of a thing is no argument against its existence, rather a condition of it." FixQuotes. February 18, 2026. https://fixquotes.com/quotes/the-irrationality-of-a-thing-is-no-argument-293/.
MLA Style (9th ed.)
"The irrationality of a thing is no argument against its existence, rather a condition of it." FixQuotes, 18 Feb. 2026, https://fixquotes.com/quotes/the-irrationality-of-a-thing-is-no-argument-293/. Accessed 19 Feb. 2026.







