If we have an atom that is in an excited state and so is going to emit a photon, we cannot say when it will emit the photon. It has a certain amplitude to emit the photon at any time, and we can predict only a probability for emission; we cannot predict the future exactly. Richard P. Feynman Read Quote
The fact that the colors in the flower have evolved in order to attract insects to pollinate it is interesting; that means insects can see the colors. That adds a question: does this aesthetic sense we have also exist in lower forms of life? Richard P. Feynman Read Quote
The internal machinery of life, the chemistry of the parts, is something beautiful. And it turns out that all life is interconnected with all other life. Richard P. Feynman Read Quote
Scientific views end in awe and mystery, lost at the edge in uncertainty, but they appear to be so deep and so impressive that the theory that it is all arranged as a stage for God to watch man’s struggle for good and evil seems inadequate. Richard P. Feynman Read Quote
First figure out why you want the students to learn the subject and what you want them to know, and the method will result more or less by common sense. Richard P. Feynman Read Quote
I was terrible in English. I couldn’t stand the subject. It seemed to me ridiculous to worry about whether you spelled something wrong or not, because English spelling is just a human convention – it has nothing to do with anything real, anything from nature. Richard P. Feynman Read Quote
When I was a young man, Dirac was my hero. He made a breakthrough, a new method of doing physics. He had the courage to simply guess at the form of an equation, the equation we now call the Dirac equation, and to try to interpret it afterwards. Richard P. Feynman Read Quote
When I was about thirteen, the library was going to get ‘Calculus for the Practical Man.’ By this time I knew, from reading the encyclopedia, that calculus was an important and interesting subject, and I ought to learn it. Richard P. Feynman Read Quote
You’re unlikely to discover something new without a lot of practice on old stuff, but further, you should get a heck of a lot of fun out of working out funny relations and interesting things. Richard P. Feynman Read Quote
In any decision for action, when you have to make up your mind what to do, there is always a ‘should’ involved, and this cannot be worked out from, ‘If I do this, what will happen?’ alone. Richard P. Feynman Read Quote
