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Albert Einstein (14 Mar 1879 - 18 Apr 1955) German-American physicist who developed the special and general theories of relativity. He was awarded the 1921 Nobel Prize for Physics for his explanation of the photoelectric effect. Short biography of Albert Einstein >>

Albert Einstein Quote
“Imagination is more important than knowledge”

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“Imagination is more important than knowledge. Knowledge is limited. Imagination encircles the world.”

— Albert Einstein

In Cosmic Religion: With Other Opinions and Aphorisms (1931).

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This quote is well-documented, because it appears in an interview with G.S. Viereck that was printed in a 1929 magazine article:1

At this point, the interviewer immediately switched to the topic of Einstein's religious belief. This interview does not include anything extending the quote to progress, its evolution or the role of scientific research, as seen in a collection, Cosmic Religion: With Other Opinions and Aphorisms2 (1931). There, it is given—without citation—as:

“I believe in intuition and inspiration. … At times I feel certain I am right while not knowing the reason. When the eclipse of 1919 confirmed my intuition, I was not in the least surprised. In fact, I would have been astonished had it turned out otherwise. Imagination is more important than knowledge. For knowledge is limited, whereas imagination embraces the entire world, stimulating progress, giving birth to evolution. It is, strictly speaking, a real factor in scientific research.”

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Nature bears long with those who wrong her. She is patient under abuse. But when abuse has gone too far, when the time of reckoning finally comes, she is equally slow to be appeased and to turn away her wrath. (1882) -- Nathaniel Egleston, who was writing then about deforestation, but speaks equally well about the danger of climate change today.

Carl Sagan: In science it often happens that scientists say, 'You know that's a really good argument; my position is mistaken,' and then they would actually change their minds and you never hear that old view from them again. They really do it. It doesn't happen as often as it should, because scientists are human and change is sometimes painful. But it happens every day. I cannot recall the last time something like that happened in politics or religion. (1987) ...(more by Sagan)

Albert Einstein: I used to wonder how it comes about that the electron is negative. Negative-positive—these are perfectly symmetric in physics. There is no reason whatever to prefer one to the other. Then why is the electron negative? I thought about this for a long time and at last all I could think was “It won the fight!” ...(more by Einstein)

Richard Feynman: It is the facts that matter, not the proofs. Physics can progress without the proofs, but we can't go on without the facts ... if the facts are right, then the proofs are a matter of playing around with the algebra correctly. ...(more by Feynman)

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