“I do not know what I may appear to the world, but to myself I seem to have been only like a boy playing on the sea-shore, and diverting myself in now and then finding a smoother pebble or a prettie...”

“To know the history of science is to recognize the mortality of any claim to universal truth. ”

“The scientist only imposes two things, namely truth and sincerity, imposes them upon himself and upon other scientists.”

“Thinking is the hardest work anyone can do, which is probably the reason why we have so few thinkers. ”

“Perhaps the logical conclusion of everyone looking the same is everyone thinking the same.”

“I could not think without writing.”

“I think the person who takes a job in order to live - that is to say, for the money [not for purpose or passion]- has turned himself into a slave.”

“sometimes you will never know the value of a moment until it becomes a memory.”

“One person's crazyness is another person's reality”