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Nature & Animals Quote by Edward Thorndike

"This growth in the number, speed of formation, permanence, delicacy and complexity of associations possible for an animal reaches its acme in the case of man"

About this Quote

Thorndike’s sentence is a victory lap for associationism dressed up as evolutionary common sense. He stacks his nouns like a lab report turning into a manifesto: number, speed, permanence, delicacy, complexity. The accumulation matters. It frames “associations” not as a parlor metaphor for thought but as a measurable, upgradeable biological capacity. Intelligence becomes an engineering problem: more links, faster, longer-lasting, finer-grained. In that light, “acme” isn’t just praise for humans; it’s a claim that the mind can be ranked along a single axis of improvement.

The subtext is a quiet demotion of everything that doesn’t fit the associative model. Insight, imagination, moral judgment, culture, even language get smuggled into the word “associations,” as if the messy interior life of a person is basically a dense network with better wiring. That’s not accidental. Thorndike’s broader project helped pave the road from philosophy-of-mind to the psychology lab: replace introspection with observable learning, replace “soul” talk with stimulus and response.

Context sharpens the intent. Writing in the era when Darwin’s shadow loomed over every human-science ambition, Thorndike offers a story that naturalizes hierarchy while sounding anti-mystical. Humans win not because of divine spark but because evolution optimized our capacity to form and retain connections. It’s also a subtle institutional pitch: if association is the core of mind, then education, training, and conditioning become the levers of human improvement - and psychology becomes the toolkit with the measuring tape.

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Verified source: Popular Science Monthly: The Evolution of the Human Intel... (Edward Thorndike, 1901)
Text match: 100.00%   Provider: Cross-Reference
Evidence:
This growth in the number, speed of formation, permanence, delicacy and complexity of associations possible for an animal reaches its acme in the case of man. (Volume 60, pages 58–65; quote on page 61). The quote appears in Edward L. Thorndike's article "The Evolution of the Human Intellect," published in The Popular Science Monthly, vol. 60, November 1901. A later reprint appears in Thorndike's 1911 book Animal Intelligence, where Chapter 6 explicitly notes that it "appeared originally in the Popular Science Monthly, Nov., 1901." The article is indexed in volume 60 at page 58, and the quote falls in the passage corresponding to page 61 of the original pagination.
Other candidates (1)
Animal Intelligence; Experimental Studies (Edward L. Thorndike, 2023) compilation97.7%
in large print Edward L. Thorndike. there are in the mammals obscure ... This growth in the number, speed of formatio...
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Citation Formats

APA Style (7th ed.)
Thorndike, Edward. (2026, March 6). This growth in the number, speed of formation, permanence, delicacy and complexity of associations possible for an animal reaches its acme in the case of man. FixQuotes. https://fixquotes.com/quotes/this-growth-in-the-number-speed-of-formation-167377/

Chicago Style
Thorndike, Edward. "This growth in the number, speed of formation, permanence, delicacy and complexity of associations possible for an animal reaches its acme in the case of man." FixQuotes. March 6, 2026. https://fixquotes.com/quotes/this-growth-in-the-number-speed-of-formation-167377/.

MLA Style (9th ed.)
"This growth in the number, speed of formation, permanence, delicacy and complexity of associations possible for an animal reaches its acme in the case of man." FixQuotes, 6 Mar. 2026, https://fixquotes.com/quotes/this-growth-in-the-number-speed-of-formation-167377/. Accessed 28 Mar. 2026.

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Edward Thorndike

Edward Thorndike (August 31, 1874 - August 9, 1949) was a Psychologist from USA.

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