When the problem [quantum chromodynamics] is finally solved, it will all be by imagination. Then there will be some big thing about the great way it was done. But it's simple -it will all be by imagination, and persistence.
Richard P. FeynmanWe are trying to prove ourselves wrong as quickly as possible, because only in that way can we find progress.
Richard P. FeynmanTo guess what to keep and what to throw away takes considerable skill. Actually it is probably merely a matter of luck, but it looks as if it takes considerable skill.
Richard P. FeynmanBut there is nothing in biology yet found that indicates the inevitability of death.
Richard P. Feynman