Max Planck — "I am convinced that the world is governed by laws of a mathematical nature."

"The highest value of human life lies in its service to humanity."

"My original decision to devote myself to science was a direct result of the discovery, which has never ceased to fill me with enthusiasm, that the laws of nature are accessible to human thought."

"The progress of science depends on the freedom of thought."

"We have no right to assume that any physical laws exist, or if they have existed up to now, that they will continue to exist in a similar manner in the future."

"A scientist must be a man of faith, not in the sense of a believer in dogma, but in the sense of a man who believes in the possibility of discovering new truths."