We can deduce, often, from one part of physics like the law of gravitation, a principle which turns out to be much more valid than the derivation.
Richard P. FeynmanFall in love with some activity, and do it! Nobody ever figures out what life is all about, and it doesn't matter. Explore the world. Nearly everything is really interesting if you go into it deeply enough. Work as hard and as much as you want to on the things you like to do the best. Don't think about what you want to be, but what you want to do. Keep up some kind of a minimum with other things so that society doesn't stop you from doing anything at all.
Richard P. FeynmanSome people think Wheeler's gotten crazy in his later years, but he's always been crazy.
Richard P. FeynmanPeople who wish to analyze nature without using mathematics must settle for a reduced understanding.
Richard P. FeynmanIt is odd, but on the infrequent occasions when I have been called upon in a formal place to play the bongo drums, the introducer never seems to find it necessary to mention that I also do theoretical physics.
Richard P. FeynmanIt appears that there are enormous differences of opinion as to the probability of a failure with loss of vehicle and of human life. The estimates range from roughly 1 in 100 to 1 in 100,000. The higher figures come from the working engineers, and the very low figures from management.
Richard P. Feynman