It is going to be necessary that everything that happens in a finite volume of space and time would have to be analyzable with a finite number of logical operations. The present theory of physics is not that way, apparently. It allows space to go down into infinitesimal distances, wavelengths to get infinitely great, terms to be summed in infinite order, and so forth; and therefore, if this proposition [that physics is computer-simulatable] is right, physical law is wrong.
Richard P. FeynmanOur freedom to doubt was born out of a struggle against authority in the early days of science. It was a very deep and strong struggle: permit us to question - to doubt - to not be sure. I think that it is important that we do not forget this struggle and thus perhaps lose what we have gained.
Richard P. FeynmanThe only way to deep happiness is to do something you love to the best of your ability
Richard P. FeynmanThe basis of action on love, the brotherhood of all men, the value of the individual... the humility of the spirit.
Richard P. Feynman