"Irrationally held truths may be more harmful than reasoned errors"
About this Quote
The subtext is a warning about epistemic character, not just epistemic outcomes. Huxley is less interested in whether you guessed the correct answer than in whether your method makes you dangerous. If you got to the truth without reasons, you can’t reliably get there again, and you can’t persuade others without coercion, charisma, or institutional force. That’s the bridge from private belief to public harm.
Context matters: Huxley (“Darwin’s bulldog”) watched religious and political authorities wield certainty as a tool of governance. This line is a defense of scientific humility as civic virtue. It argues that society should fear the righteous person with a lucky hunch more than the skeptic with a well-argued mistake, because only one of them is building a culture that can correct itself.
Quote Details
| Topic | Reason & Logic |
|---|---|
| Source | Verified source: The Coming of Age of the Origin of Species (Thomas Huxley, 1880)
Evidence: Against any such a consummation let us all devoutly pray; for the scientific spirit is of more value than its products, and irrationally-held truths may be more harmful than reasoned errors. (Pages 1–4). This line appears in T. H. Huxley’s lecture “The Coming of Age of the Origin of Species,” delivered at the Royal Institution on March 19, 1880, and first printed in Nature on May 6, 1880 (Nature vol. 22, pp. 1–4). The commonly-circulated shorter form (“Irrationally held truths may be more harmful than reasoned errors”) is a truncated excerpt of the full sentence as printed. The Nature record provides the bibliographic details (issue date, volume, and page range). Other candidates (1) BMAT Past Paper Worked Solutions: 2003 - 2016 (BlackStone Tutors, 2018) compilation95.0% ... Irrationally held truths may be more harmful than reasoned errors . ( Thomas Henry Huxley ) Write a unified essay... |
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Citation Formats
APA Style (7th ed.)
Huxley, Thomas. (2026, February 12). Irrationally held truths may be more harmful than reasoned errors. FixQuotes. https://fixquotes.com/quotes/irrationally-held-truths-may-be-more-harmful-than-5501/
Chicago Style
Huxley, Thomas. "Irrationally held truths may be more harmful than reasoned errors." FixQuotes. February 12, 2026. https://fixquotes.com/quotes/irrationally-held-truths-may-be-more-harmful-than-5501/.
MLA Style (9th ed.)
"Irrationally held truths may be more harmful than reasoned errors." FixQuotes, 12 Feb. 2026, https://fixquotes.com/quotes/irrationally-held-truths-may-be-more-harmful-than-5501/. Accessed 12 Feb. 2026.












