"Our body is not a thing, but a process."

"This life of yours which you are living is not merely a piece of the entire existence, but is in a certain sense the whole; only this whole is not so constituted that it can be surveyed in a single gl…"

"The quantum theory is an 'unpleasant' theory, which I should have liked to assume to be true only if I were forced to do so by the facts."

"The greatest obstacle to progress in science is the belief that one knows something which one does not know."

"The scientist only imposes the laws of nature on nature."