A poet once said, "The whole universe is in a glass of wine." We will probably never know in what sense he… — Richard P. Feynman Copy Share Image
What is the fundamental hypothesis of science, the fundamental philosophy? We stated it in the first chapter: the sole test of the… — Richard P. Feynman Copy Share Image
Everybody who reasons carefully about anything is making a contribution ... and if you abstract it away and send it to the… — Richard P. Feynman Copy Share Image
If a guy tells me the probability of failure is 1 in 100,000, I know he's full of crap. — Richard P. Feynman Copy Share Image
In any organization there ought to be the possibility of discussion... fence sitting is an art, and it's difficult, and it's important… — Richard P. Feynman Copy Share Image
It is going to be necessary that everything that happens in a finite volume of space and time would have to be… — Richard P. Feynman Copy Share Image
If you can't explain something to a first year student, then you haven't really understood . — Richard P. Feynman Copy Share Image
Nature isn't classical, dammit, and if you want to make a simulation of nature, you'd better make it quantum mechanical, and by… — Richard P. Feynman Copy Share Image
It does not make any difference how beautiful your guess is. It does not make any difference how smart you are, who… — Richard P. Feynman Copy Share Image
If an apple was magnified to the size of the Earth, then the atoms in the apple would be approximately the size… — Richard P. Feynman Copy Share Image
Whenever you see a sweeping statement that a tremendous amount can come from a very small number of assumptions, you always find… — Richard P. Feynman Copy Share Image
The difficulty really is psychological and exists in the perpetual torment that results from your saying to yourself, "But how can it… — Richard P. Feynman Copy Share Image
You can recognize truth by its beauty and simplicity. When you get it right, it is obvious that it is right --… — Richard P. Feynman Copy Share Image
I learned a lot of different things from different schools. MIT is a very good place…. It has developed for itself a… — Richard P. Feynman Copy Share Image
A poet once said, "The whole universe is in a glass of wine." We will probably never know in what sense he… — Richard P. Feynman Copy Share Image
If all of this, all the life of a stream of water, can be nothing but a pile of atoms, how much… — Richard P. Feynman Copy Share Image
If all of mathematics disappeared, physics would be set back by exactly one week. — Richard P. Feynman Copy Share Image
If there is something very slightly wrong in our definition of the theories, then the full mathematical rigor may convert these errors… — Richard P. Feynman Copy Share Image
It is the facts that matter, not the proofs. Physics can progress without the proofs, but we can't go on without the… — Richard P. Feynman Copy Share Image
If you can find any other view of the world which agrees over the entire range where things have already been observed,… — Richard P. Feynman Copy Share Image
We cannot define anything precisely. If we attempt to, we get into the paralysis of thought that comes to philosophers, who sit… — Richard P. Feynman Copy Share Image
Light is something like raindrops each little lump of light is called a photon and if the light is all one color,… — Richard P. Feynman Copy Share Image
If I say [electrons] behave like particles I give the wrong impression; also if I say they behave like waves. They behave… — Richard P. Feynman Copy Share Image
If the professors of English will complain to me that the students who come to the universities, after all those years of… — Richard P. Feynman Copy Share Image
If you're doing an experiment, you should report everything that you think might make it invalid - not only what you think… — Richard P. Feynman Copy Share Image
“Philosophers have said before that one of the fundamental requisites of science is that whenever you set up the same conditions, the same thing… — Richard P. Feynman Copy Share Image
My rule is, when you are unhappy, think about it. But when you're happy, don't. Why spoil it? You're probably happy for some ridiculous… — Richard P. Feynman Copy Share Image
Trying to understand the way nature works involves a most terrible test of human reasoning ability. It involves subtle trickery, beautiful tightropes of logic… — Richard P. Feynman Copy Share Image
Mathematics is a language plus reasoning; it is like a language plus logic. Mathematics is a tool for reasoning. — Richard P. Feynman Copy Share Image
It is necessary for the very existence of science that minds exist which do not allow that nature must satisfy some preconceived conditions. — Richard P. Feynman Copy Share Image
“There was a Princess Somebody of Denmark sitting at a table with a number of people around her, and I saw an empty chair… — Richard P. Feynman Copy Share Image
All the time you're saying to yourself, 'I could do that, but I won't,'--which is just another way of saying that you can't. — Richard P. Feynman Copy Share Image
“There's a big difference between knowing the name of something and knowing something.” — Richard P. Feynman Copy Share Image
The fact that you are not sure means that it is possible that there is another way someday. — Richard P. Feynman Copy Share Image
One cannot understand... the universality of laws of nature, the relationship of things, without an understanding of mathematics. There is no other way to… — Richard P. Feynman Copy Share Image
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