It is not the strongest of the species that survives, nor the most intelligent that survives. It is the one that is most adaptable to change
Not Charles Darwin — a modern paraphrase by Leon C. MegginsonLeon C. Megginson (paraphrasing Darwin)1921–2010 · American professor of management & marketing, Louisiana State University
Charles Darwin never wrote or said this line, and it does not appear in On the Origin of Species. The words are a paraphrase that business professor Leon C. Megginson coined in 1963 ↗ to summarize his reading of Darwin; over later decades it was streamlined and falsely re-quoted as Darwin’s own words.
“It is not the strongest of the species that survives, nor the most intelligent that survives. It is the one that is most adaptable to change” Not Charles Darwin. This line is a 1963 paraphrase by professor Leon C. Megginson, later restyled and misquoted as Darwin's own words. It does not appear in On the Origin of Species. — Quotle.info
⚠ The slide-ready mistake: crediting this to Charles Darwin. Use the credit shown above instead.
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In context
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Provenance
The documented origin
Real author
Leon C. Megginson (1921–2010)
First appeared
1963 address, published 1963 — “Lessons from Europe for American Business”
Published in
Southwestern Social Science Quarterly 44(1): 3–13, p. 4
In Darwin’s works
Not found — absent from On the Origin of Species
According to Darwin’s Origin of Species, it is not the most intellectual of the species that survives; it is not the strongest that survives; but the species that survives is the one that is able best to adapt and adjust to the changing environment in which it finds itself.
Megginson’s original 1963 paraphrase — presented as his summary of Darwin’s ideas, without quotation marks. The familiar polished wording is a later streamlining of this passage.
1963: Leon C. Megginson delivers the paraphrase at the Southwestern Social Science Association convention, later printed in the Southwestern Social Science Quarterly ↗ — his interpretation of Darwin, not a quotation.
1960s–80s: writers drop Megginson’s hedge and recast the passage as a direct Darwin quote; the Darwin Correspondence Project ↗ documents the “slightly recast” version.
The familiar polished wording is an anonymous streamlining with no single identifiable author, so no public-domain status can be asserted. Its closest documented source — Leon C. Megginson’s 1963 paraphrase — was published after 1930 and would itself be in-copyright to Megginson’s estate and the original publisher.
Fact-check
How the misquote works
This is a textbook case of a paraphrase promoted into a quotation — person A summarizes person B, and later the summary is re-quoted as B’s own words.
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The wordingCharles Darwin Never said it
Darwin never wrote this sentence; it appears nowhere in On the Origin of Species or his other works. The Darwin Correspondence Project ↗ catalogues it as a misquotation.
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The real sourceLeon C. Megginson, 1963
Megginson offered the line as his own gloss on Darwin, without quotation marks; Quote Investigator ↗ traces the whole streamlining that turned his paraphrase into a ‘Darwin quote.’
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Stray creditClarence Darrow Also wrong
A 1987 version oddly credited the line to the lawyer Clarence Darrow — another mistaken attribution documented by Quote Investigator ↗.
✓The thought loosely echoes Darwin, but the words are Leon C. Megginson’s 1963 paraphrase — not anything Darwin wrote ↗.
Context
Why this quote spread
The line reads like a tidy moral for a change-management slide: not strength, not brains, but adaptability wins. That is exactly why it travels — and exactly why it does not sound like Darwin, who never reduced natural selection to a motivational maxim. Darwin wrote of “natural selection” and adopted Herbert Spencer’s phrase “survival of the fittest”; “fittest” meant best-fitted to a particular environment, not strongest or smartest.
The real author was Leon C. Megginson, a Louisiana State University business professor, who in a 1963 address offered the sentence as his own interpretation of On the Origin of Species — no quotation marks. Over the following decades other writers dropped the hedge, tightened the wording, and pinned it directly on Darwin. It is now carved on the floor of a California academy of sciences and printed in countless textbooks, none of it in Darwin’s hand.
A professor’s paraphrase of Darwin, slowly promoted into a Darwin quotation.
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Filed under
More provenance-checked quotes on the same theme, each with its reuse status.
1921–2010 · American professor of management & marketing, LSU
Leon C. Megginson was a professor of management and marketing at Louisiana State University (1952–1977) and later the University of South Alabama. In a 1963 address on European lessons for American business, he paraphrased Darwin’s theory to make a point about organizational adaptability — a line that, stripped of its context and hedges, was gradually re-quoted as Darwin’s own. Megginson is now best remembered outside business scholarship for a sentence he wrote about Darwin, not one Darwin wrote.
For writers & researchers
Cite this
Primary origin
Leon C. Megginson, “Lessons from Europe for American Business,” Southwestern Social Science Quarterly 44, no. 1 (1963): 3–13, at p. 4. Origin traced by Quote Investigator (2014) and the Darwin Correspondence Project.
This verification page
Quotle.info. “Who really said ‘It is not the strongest of the species that survives, nor the most intelligent that survives. It is the one that is most adaptable to change’?” Last verified 8 Jul 2026. https://quotle.info/who-said/it-is-not-the-strongest-of-the-species-that-survives-nor