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Richard P. Feynman Quotes


An American physicist.
(1918 - 1988)

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All fundamental processes are reversible.
 

Einstein was a giant. His head was in the clouds, but his feet were on the ground. Those of us who are not so tall have to choose!
 

For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled.
[Technology]
 

I believe that a scientist looking at nonscientific problems is just as dumb as the next guy.
 

I think I can safely say that nobody understands quantum mechanics.
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I was born not knowing and have had only a little time to change that here and there.
[Change]
 

If I could explain it to the average person, I wouldn't have been worth the Nobel Prize.
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If you can't explain something to a first year student, then you haven't really understood it.
 

It doesn't matter how beautiful your theory is, it doesn't matter how smart you are. If it doesn't agree with experiment, it's wrong.
 

It doesn't seem to me that this fantastically marvelous universe, this tremendous range of time and space and different kinds of animals, and all the different planets, and all these atoms with all their motions, and so on, all this complicated thing can merely be a stage so that God can watch human beings struggle for good and evil - which is the view that religion has. The stage is too big for the drama.
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It is in the admission of ignorance and the admission of uncertainty that there is a hope for the continuous motion of human beings in some direction that doesn't get confined, permanently blocked, as it has so many times before in various periods in the history of man.
 

Nature uses only the longest threads to weave her patterns, so that each small piece of her fabric reveals the organization of the entire tapestry.
[Nature]
 

Our imagination is stretched to the utmost, not, as in fiction, to imagine things which are not really there, but just to comprehend those things which are there.
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Physics is like sex. Sure, it may give some practical results, but that's not why we do it.
 

Poets say science takes away from the beauty of the stars - mere globs of gas atoms. I, too, can see the stars on a desert night, and feel them. But do I see less or more?
 

Reality must take precedence over public relations, for nature cannot be fooled.
 

Religion is a culture of faith; science is a culture of doubt.
 

Science alone of all the subjects contains within itself the lesson of the danger of belief in the infallibility of the greatest teachers in the preceding generation ... Learn from science that you must doubt the experts. As a matter of fact, I can also define science another way: Science is the belief in the ignorance of experts.
[Science]
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Science is a way of trying not to fool yourself. The first principle is that you must not fool yourself, and you are the easiest person to fool.
[Science]
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Scientific views end in awe and mystery, lost at the edge in uncertainty, but they appear to be so deep and so impressive that the theory that it is all arranged as a stage for God to watch man's struggle for good and evil seems inadequate.
 


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