Richard Phillips Feynman (11 mai 1918 - 15 février 1988) est un physicien théoricien américain nobelisé. Il est l'un des physiciens les plus influents de la deuxième moitié du XXe siècle, en raison notamment de ses travaux sur l'électrodynamique quantique relativiste, les quarks et l'hélium superfluide.
- (en) If, in some cataclysm, all of scientific knowledge were to be destroyed, and only one sentence passed on to the next generations of creatures, what statement would contain the most information in the fewest words? I believe it is the atomic hypothesis (or the atomic fact, or whatever you wish to call it) that all things are made of atoms little particles that move around in perpetual motion, attracting each other when they are a little distance apart, but repelling upon being squeezed into one another. In that one sentence, you will see, there is an enormous amount of information about the world, if just a little imagination and thinking are applied.
- (en) [...] we have always had (secret, secret, close the doors!) we have always have had a great deal of difficulty in understanding the world view that quantum mechanics represents. At least I do, because I'm an old enough man that I haven't got to the point that this stuff is obvious to me. Okay, I still get nervous with it. And therefore, some of the youngest students...you know how it always is, every new idea, it takes a generation or two until it becomes obvious that there's no real problem. It has not yet become obvious to me that there is no real problem. I cannot define the real problem, therefore I suspect there's no real problem, but I'm not sure there's no real problem.
- « Simulating Physics with Computers », Richard P. Feynman (trad. Wikiquote), Int. J. Theor. Physics, vol. 21 nº 6/7, 1982, p. 471
- (en) I think I can safely say that nobody understands quantum mechanics
- sur le fait qu'il existe de nombreuses manières de formuler une même théorie, Discours de réception du prix Nobel.
- « Les intégrales de chemin », Elena et Leonardo Castellani, Pour la science, nº 19, 2004 (lire en ligne)