Richard Feynman — "I'm not a deep thinker. I'm a practical thinker."
I'm not a deep thinker. I'm a practical thinker.
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More from Richard Feynman
"I was very surprised that a lot of artists, when they found out I was a scientist, they would start telling me about their theories of the universe, and they were always crackpot theories."
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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
The quote draws a line between abstract philosophizing and hands-on problem-solving. Rather than claiming profound, sweeping insights, the speaker identifies as someone who works through concrete problems methodically. It's intellectual humility fused with quiet confidence — real understanding comes not from lofty theorizing but from getting into the mechanics of how things actually function and building solutions from the ground up.
Relevance to Richard Feynman
Feynman cracked QED not through pure abstraction but through his famous diagrammatic shorthand — Feynman diagrams — that made impossibly complex calculations tractable. Outside the lab he safecracked safes at Los Alamos, played bongo drums, and taught with showman clarity. He openly ridiculed impenetrable academic jargon. For Feynman, truth lived in things you could compute, build, or demonstrate — never in philosophical fog.
The era
Feynman worked from the 1940s through the 1980s, when physics was fracturing into ever-more-abstract territory — quantum field theory, S-matrix approaches, early string theory — with growing distance between theorists and experimental reality. Post-Manhattan Project science also faced public pressure to be useful, not merely beautiful. In that climate, his blunt preference for practicality was a deliberate rebuke of academic pomposity and a defense of physics as a craft grounded in nature.
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