Max Planck — "The scientist's highest aim is to find the truth."

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

"The true pioneer is a man who, if necessary, is prepared to go into the wilderness alone, without anyone following him."

"The freedom of thought and speech must be preserved in all circumstances."

"We cannot rest content with an explanation of natural phenomena which does not connect them ultimately with the spiritual."