"There can never be any real opposition between religion and science; for the one is the complement of the other. Every serious and reflective person realizes, I think, that the religious element in hi…"

"The quantum of action, as I called it, was a purely formal assumption and I really did not think much about it."

"The measure of a man is what he does with power."

"An important scientific innovation rarely makes its way by gradually winning over and converting its opponents: it rarely happens that Saul becomes Paul. What does happen is that its opponents gradual…"

"The history of science shows that the human mind is capable of understanding the most complex phenomena."