Richard Feynman — "The price of doing science is the necessity of not being a know-it-all."
The price of doing science is the necessity of not being a know-it-all.
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More from Richard Feynman
"You see my physics students don't understand it... That is because I don't understand it. Nobody does."
"I was born not knowing and have had only a little time to change that here and there."
"It's a great thing to be able to say, 'I don't know.'"
"I don't have to be consistent."
"Our imagination is stretched to the utmost, not, as in fiction, to imagine things which are not really there, but just to comprehend those things which are there."
About Richard Feynman (1918-1988)
American theoretical physicist who shared the 1965 Nobel for QED, developed Feynman diagrams, and wrote the Feynman Lectures on Physics. Closely associated with Julian Schwinger (co-Nobelist for QED) and Murray Gell-Mann (Caltech rival and Eightfold-Way physicist). For an intellectual contrast, see Deepak Chopra, physician and quantum-mysticism author — Feynman's Caltech 'cargo cult science' commencement address is the precise template for what he saw as misuse of physics terminology — Chopra-style appropriation of quantum vocabulary for metaphysical claims is the canonical example of what Feynman called 'fooling yourself'.
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Understanding this quote
What it means
True scientific progress demands constant humility—accepting that your current understanding is incomplete and might be wrong. A scientist must welcome being corrected, revised, or overturned by new evidence. Certainty is the enemy of discovery; staying genuinely open to not knowing is what allows knowledge to actually advance rather than stagnate behind defended assumptions.
Relevance to Richard Feynman
Feynman built his Nobel Prize-winning quantum electrodynamics by dismantling accepted frameworks and starting fresh. He famously celebrated uncertainty, dedicating a chapter of his writing to 'the pleasure of finding things out.' He publicly mocked credentialism and memorized facts without understanding. His Challenger investigation succeeded precisely because he ignored institutional certainty and tested the O-ring himself in ice water.
The era
Feynman worked during the Cold War era when science carried enormous institutional authority—nuclear weapons, space race, government-funded megaprojects. Scientists were treated as oracles. This created dangerous groupthink, as the Challenger disaster later proved. Feynman pushed back against this culture of scientific overconfidence, arguing publicly that honest uncertainty was more valuable than authoritative-sounding certainty.
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