“If you want to learn about nature, to appreciate nature, it is necessary to understand the language [of mathematics] that she speaks in. She offers her information only in one form; we are not so unhumble as to demand that she change before we pay any attention.” -Feynman on Why We Need Math
“Nothing exists except atoms and empty space; everything else is opinion.” –Democritus
“It is important to realize in physics today, that we have no knowledge of what energy is … It is an abstract thing in that it does not tell us the mechanism or the reasons …”
-Feynman
“The great initial success of the quantum theory cannot convert me to believe in that fundamental game of dice.” –Einstein (1944)
“If all this damned quantum jumping were really here to stay, I should be sorry I ever got involved with quantum theory.” –Schrödinger