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Science Quote by Carl Sagan

"Science is a way of thinking much more than it is a body of knowledge"

About this Quote

Sagan’s line is a quiet rebuke to the trivia version of science: the idea that being “pro-science” means memorizing facts, trusting experts, or owning the right infographic. He’s insisting that science is less a warehouse of conclusions than a discipline of humility, a mental posture that keeps asking, “How do we know?” That emphasis matters because bodies of knowledge calcify. A way of thinking stays mobile, ready to discard yesterday’s certainty when better evidence shows up.

The subtext is democratic and defensive at once. Democratic, because a method can be shared even when credentials can’t; you don’t need a lab coat to value skeptical inquiry, probabilistic thinking, and the willingness to be wrong. Defensive, because Sagan spent his career watching scientific authority get distorted from both sides: dismissed by ideologues who prefer comforting narratives, and treated as a priesthood by people who want certainty without understanding. Framing science as thinking, not canon, protects it from becoming another tribal badge.

Context sharpens the intent. Sagan was a public educator in an age when mass media could amplify wonder or weaponize misinformation. From Cosmos to his later warnings about a society dependent on science but ignorant of it, he argued that the real civic crisis isn’t a lack of facts; it’s a lack of epistemic habits. Read this way, the quote isn’t inspirational wallpaper. It’s a cultural prescription: if you want the benefits of science, you need a citizenry trained in doubt, testing, and the courage to revise.

Quote Details

TopicScience
Source
Verified source: Broca's Brain (Carl Sagan, 1979)
Text match: 100.00%   Provider: Cross-Reference
Evidence:
Science is a way of thinking much more than it is a body of knowledge. (Chapter/essay: "Can We Know the Universe?" (page number varies by edition)). Primary source appears to be Carl Sagan’s 1979 essay collection "Broca’s Brain: Reflections on the Romance of Science". The quote occurs at the start of the essay "Can We Know the Universe?" (often reproduced as an excerpt). I was able to verify the exact sentence wording from a secondary reproduction of that excerpt and from a paywalled WSJ piece that quotes the sentence and attributes it to "Broca’s Brain". However, I did not retrieve a fully viewable scan of the 1979 book pages (e.g., via Google Books/Internet Archive) in this browsing session, so I cannot give a definitive page number for your specific edition or prove this is the *first-ever* time Sagan used the wording prior to 1979 (it may have appeared in an earlier talk/article).
Other candidates (1)
Evolution in Perspective (Rodger W. Bybee, 2004) compilation95.0%
... Carl Sagan (1993) that “Science is a way of thinking much more than it is a body of knowledge.” Yet, as pointed o...
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Citation Formats

APA Style (7th ed.)
Sagan, Carl. (2026, February 26). Science is a way of thinking much more than it is a body of knowledge. FixQuotes. https://fixquotes.com/quotes/science-is-a-way-of-thinking-much-more-than-it-is-30400/

Chicago Style
Sagan, Carl. "Science is a way of thinking much more than it is a body of knowledge." FixQuotes. February 26, 2026. https://fixquotes.com/quotes/science-is-a-way-of-thinking-much-more-than-it-is-30400/.

MLA Style (9th ed.)
"Science is a way of thinking much more than it is a body of knowledge." FixQuotes, 26 Feb. 2026, https://fixquotes.com/quotes/science-is-a-way-of-thinking-much-more-than-it-is-30400/. Accessed 3 Apr. 2026.

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Science is a Way of Thinking Much More Than It Is a Body of Knowledge
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About the Author

Carl Sagan

Carl Sagan (November 9, 1934 - December 20, 1996) was a Scientist from USA.

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