Richard P. Feynman Quotes


We cannot define anything precisely. If we attempt to, we get into the paralysis of thought that comes to philosophers, who sit opposite each other, one saying to the other, "You don't know what you are talking about!" The second one says, "What do you mean by know? What do you mean by talking? What do you mean by you?"


Citations

Feynman, Richard P., Robert B. Leighton, and Matthew Sands. The Feynman Lectures on Physics, Volume I. Addison-Wesley, 1963, p. 8-2.

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Richard P. Feynman
Richard P. Feynman
  • Born: May 11, 1918
  • Died: February 15, 1988
  • Nationality: American
  • Profession: Nobel Laureate, Physicist & Mathematician

Richard Phillips Feynman was an American theoretical physicist and Nobel Prize winner who made significant contributions to quantum mechanics, quantum electrodynamics, and particle physics. He's known for his work on the Manhattan Project, developing Feynman diagrams, and explaining the interactions between light and matter. While studying for his PhD, Feynman participated in the Manhattan Project and helped develop the atomic bomb. For contributions to the development of quantum electrodynamics, Feynman received the Nobel Prize in Physics in 1965 jointly with Julian Schwinger and Shin'ichirō Tomonaga.