It doesn't matter how beautiful your theory is, it doesn't matter how smart you are. If it doesn't agree with experiment, it's wrong.
“Better reality than a dream: if something is real, then it's real and you're not to blame.”
“What I miss today more than anything else - I don't go to church as much anymore - but that old-time religion, that old singing, that old praying which I love so much. That is the great strength of my being, of my writing.”