Richard Feynman — "The great thing about science is that it's a way of not fooling yourself."
The great thing about science is that it's a way of not fooling yourself.
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More from Richard Feynman
"The easiest way to fool yourself is to believe something because you want it to be true."
"I'm not interested in being a guru. I'm interested in understanding the world."
"I would rather have questions that can't be answered than answers that can't be questioned."
"I think that when you're doing science, you're trying to find out something that nobody knows."
"I'm not a deep thinker. I'm a practical thinker."
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
Science demands rigorous self-skepticism — you must test your own ideas against reality, not just defend them. It's a systematic method for catching your own errors before they harden into false beliefs. You design experiments that could prove you wrong, publish so others can challenge you, and accept results even when they contradict what you hoped to find. The process itself is the protection against self-deception.
Relevance to Richard Feynman
Feynman made intellectual honesty his defining trait — he famously exposed the Challenger disaster by dunking O-ring material in ice water while NASA officials obscured data. He developed QED by obsessively checking calculations against experiment, not authority. His Caltech commencement address coined 'cargo cult science' to describe researchers who performed science's rituals without its core discipline: not fooling themselves.
The era
Feynman worked through Cold War science culture, when government funding, nuclear prestige, and institutional pressure created enormous incentives to shade findings or oversell results. Sputnik triggered a space race where political outcomes competed with truth. His career spanned Los Alamos through the 1980s challenger investigation — an era repeatedly showing that institutions, not just individuals, needed science's self-correcting discipline most urgently.
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