Richard Feynman — "You see my physics students don't understand it... That is because I don't under…"
You see my physics students don't understand it... That is because I don't understand it. Nobody does.
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More from Richard Feynman
"I would like to add a third possibility, that it might be that, when we die, we just die, and that's the end of it."
"I don't believe in God. I don't believe in anything. I'm a scientist."
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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
Quantum mechanics is genuinely incomprehensible to human intuition, not merely complex. Even experts who can calculate its predictions perfectly cannot explain why the universe behaves that way at the subatomic level. Understanding the math and understanding the reality are entirely different things. Honesty about that gap is more intellectually rigorous than pretending mastery where none exists.
Relevance to Richard Feynman
Feynman won the 1965 Nobel Prize for quantum electrodynamics, the most precisely verified theory in physics, yet famously insisted nobody truly understands quantum mechanics. He taught at Caltech and wrote the legendary Feynman Lectures. His entire career celebrated curiosity and radical honesty over false authority, making this admission characteristic rather than surprising.
The era
Feynman worked through mid-20th century physics when quantum mechanics was reshaping science, yet Cold War culture pressured experts to project certainty and authority. The Space Race demanded confident scientists. Against that backdrop, publicly admitting fundamental incomprehension was countercultural and intellectually brave, modeling a scientific humility that influenced generations of physicists and educators.
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