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… — 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 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
The whole question of imagination in science is often misunderstood by people in other disciplines. ... They overlook the fact that whatever… — Richard P. Feynman Copy Share Image
As you know, a theory in physics is not useful unless it is able to predict underlined effects which we would otherwise… — Richard P. Feynman Copy Share Image
Our poets do not write about it; our artists do not try to portray this remarkable thing. I don't know why. Is… — Richard P. Feynman Copy Share Image
On the contrary, it's because somebody knows something about it that we can't talk about physics . It's the things that nobody… — Richard P. Feynman Copy Share Image
All theoretical chemistry is really physics; and all theoretical chemists know it. — Richard P. Feynman Copy Share Image
To not know math is a severe limitation to understanding the world. — 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
Therefore psychologically we must keep all the theories in our heads, and every theoretical physicist who is any good knows six or… — Richard P. Feynman Copy Share Image
When a scientist doesn't know the answer to a problem, he is ignorant. When he has a hunch as to what the… — 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
Poets say science takes away from the beauty of stars-mere globs of gas atoms. Nothing is "mere". I too see the stars… — Richard P. Feynman Copy Share Image
I have the advantage of having found out how hard it is to get to really know something. How careful you have… — Richard P. Feynman Copy Share Image
In its efforts to learn as much as possible about nature, modern physics has found that certain things can never be "known"… — Richard P. Feynman Copy Share Image
We need to teach how doubt is not to be feared but welcomed. It's OK to say, "I don't know." — 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
People are always asking for the latest developments in the unification of this theory with that theory, and they don't give us… — Richard P. Feynman Copy Share Image
[When a young person loses faith in his religion because he begins to study science and its methodology] it isn't that [through… — Richard P. Feynman Copy Share Image
When a Caltech student asked the eminent cosmologist Michael Turner what his "bias" was in favoring one or another particle as a… — Richard P. Feynman Copy Share Image
One does not, by knowing all the physical laws as we know them today, immediately obtain an understanding of anything much. I… — 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
