Now we have found that this is of paramount importance in order to progress. We absolutely must leave room for doubt or there is no progress and ther… - Richard Feynman

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Engraved portrait of Richard Feynman, facing right

Now we have found that this is of paramount importance in order to progress. We absolutely must leave room for doubt or there is no progress and there is no learning. There is no learning without having to pose a question. And a question requires doubt. People search for certainty. But there is no certainty.

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About Richard Feynman

Richard Phillips Feynman (May 11, 1918 – February 15, 1988) was an American theoretical physicist. He is known for the work he did in the path integral formulation of quantum mechanics, the theory of quantum electrodynamics, the physics of the superfluidity of supercooled liquid helium, and in particle physics, for which he proposed the parton model. For his contributions to the development of quantum electrodynamics, Feynman received the Nobel Prize in Physics in 1965 jointly with Julian Schwinger and Shin'ichirō Tomonaga. Feynman developed a widely used pictorial representation scheme for the mathematical expressions describing the behavior of subatomic particles, which later became known as Feynman diagrams. During his lifetime, Feynman became one of the best-known scientists in the world.

Biography information from Wikiquote · Portrait adapted from Wikimedia Commons, Copyright Tamiko Thiel 1984 (CC BY-SA)

Also Known As

Pen Names: Ofey
Native Name: Richard Phillips Feynman
Alternative Names: Feynman Dick Feynman Richard P. Feynman

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Additional quotes by Richard Feynman

If you thought you were trying to find out more about it because you're gonna get an answer to some deep philosophical question...you may be wrong! It may be that you can't get an answer to that particular question by finding out more about the character of nature. But my interest in science is to simply find out about the world.

I really can't do a good job, any job, of explaining magnetic force in terms of something you're more familiar with, because I do not understand it in terms of something you are more familiar with.

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...In that same period there was Newton, there was Harvey studying the circulation of the blood, there were people with methods of analysis by which progress was being made! You can take every one of Spinoza's propositions and take the contrary propositions and look at the world--and you can't tell which is right. Sure, people were awed because he had the courage to take on these great questions, but it doesn't do any good to have the courage if you can't get anywhere with the question...

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