“ We absolutely must leave room for doubt or there is no progress and there is no learning. There is no learning without having to pose a question. And a question requires doubt. People search for certa… Richard P. Feynman
“ People are always asking for the latest developments in the unification of this theory with that theory, and they don't give us a chance to tell them anything about one of the theories that we know pr… Richard P. Feynman
“ I thought one should have the attitude of 'What do you care what other people think!' Richard P. Feynman
“ 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… Richard P. Feynman
“ There is a physical problem that is common to many fields, that is very old, and that has not been solved. It is not the problem of finding new fundamental particles, but something left over from a lo… Richard P. Feynman
“ Psychoanalysis is not a science: it is at best a medical process, and perhaps even more like witch-doctoring. Richard P. Feynman
“ When it came time for me to give my talk on the subject, I started off by drawing an outline of the cat and began to name the various muscles.The other students in the class interrupt me: We *know* al… Richard P. Feynman
“ It is probably better to realize that the probability concept is in a sense subjective, that it is always based on uncertain knowledge, and that its quantitative evaluation is subject to change as we… Richard P. Feynman
“ 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… Richard P. Feynman
“ I can live with doubt and uncertainty and not knowing. I think it's much more interesting to live not knowing than to have answers that might be wrong. Richard P. Feynman
“ If you realize all the time what's kind of wonderful - that is, if we expand our experience into wilder and wilder regions of experience - every once in a while, we have these integrations when everyt… Richard P. Feynman
“ See that the imagination of nature is far, far greater than the imagination of man. Richard P. Feynman
“ Alone, and start to think. There are the rushing waves . . . mountains of molecules, each stupidly minding its own business . . . trillions apart . . . yet forming white surf in unison. Ages on ages .… Richard P. Feynman
“ When I tried to show him how an electromagnet works by making a little coil of wire and hanging a nail on a piece of string, I put the voltage on, the nail swung into the coil, and Jerry said, Ooh! It… Richard P. Feynman
“ It is surprising that people do not believe that there is imagination in science. It is a very interesting kind of imagination, unlike that of the artist. The great difficulty is in trying to imagine… Richard P. Feynman
“ 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
“ Of course, you only live one life, and you make all your mistakes, and learn what not to do, and that’s the end of you. Richard P. Feynman
“ I've always been rather very one-sided about the science, and when I was younger, I concentrated almost all my effort on it. I didn't have time to learn, and I didn't have much patience for what's cal… Richard P. Feynman
