Richard Feynman

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

“Philosophy of science is about as useful to scientists as ornithology is to birds.”

“There's a kind of saying that you don't understand its meaning, 'I don't believe it. It's too crazy. I'm not going to accept it.'… You'll have to accept it. It's the way nature works. If you...”

“Science is what we have learned about how to keep from fooling ourselves.”

“The ultimate test of your knowledge is your capacity to convey it to another.”

“I would rather have questions that can't be answered than answers that can't be questioned.”

“Odiaría morir dos veces, sería tan aburrido!.”

“Science is a way of trying not to fool yourself. The principle is that you must not fool yourself, and you are the easiest person to fool.”

“There is no harm in doubt and skepticism, for it is through these that new discoveries are made.”

“Translate these numbers, which are written in base seven, to base five.” Translating from one base to another is an utterly useless thing. If you can do it, maybe it’s entertaining; if you c...”

“It is our responsibility as scientists, knowing the great progress and great value of a satisfactory philosophy of ignorance, the great progress that is the fruit of freedom of thought, to p...”

“The deeper a thing is, the more interesting it is”

“We could, of course, use any notation we want; do not laugh at notations; invent them, they are powerful. In fact,mathematics is, to a large extent, invention of better notations.”

“That is the idea that we all hope you have learned in studying science in school—we never explicitly say what this is, but just hope that you catch on by all the examples of scientific inves...”

“A philosopher once said 'It is necessary for the very existence of science that the same conditions always produce the same results'. Well, they do not. You set up the circumstances, with th...”

“I was an ordinary person who studied hard. There are no miracle people. It happens they get interested in this thing and they learn all this stuff, but they’re just people.”

“I... a universe of atoms, an atom in the universe.”