Bohr, Niels

"An expert is a person who has made all the mistakes that can be made in his field."

"Prediction is very difficult, especially if it's about the future."

"The opposite of a correct statement is a false statement. But the opposite of a profound truth may well be another profound truth."

"If quantum mechanics hasn't profoundly shocked you, you haven't understood it yet."

"There are some things so serious that you can only joke about them."

"The task is not so much to see what no one has yet seen, but to think what nobody has yet thought about that which everybody sees."

"I go along with the regularity of semitones and for variety I go up to the fifth."

"Technology has changed, and we must change with it."

"A physicist is just an atom's way of looking at itself."

"Causality may be statistical."

"We must be clear that when it comes to atoms, language can be used only as in poetry."

"The greatest strength of the atom is that it cannot be destroyed by ordinary means."

"No important discovery was ever made by a bureaucrat."

"An outsider's point of view is often valuable."

"Everything we call real is made of things that cannot be regarded as real."

"The only way to deal with an unfree world is to become so absolutely free that very existence is an act of rebellion."

"Science does not give us absolute truth, but approximations that improve with time."

"The task of education is to teach us not to be content with unsupported opinions."

"In the middle of difficulty lies opportunity."

"We are all to some extent slaves of the prejudices of our time."

"A healthy society must be able to tolerate some skepticism."

"When you come to a fork in the road, take it."

"It is the tension between creativity and skepticism that has produced the stunning and unexpected findings of science."

"Never express yourself more clearly than you think."

"The atoms or elementary particles themselves are not real; they form a world of potentialities."

"I would say that the task is not so much to see what no one has yet seen, but to think what nobody has yet thought about that which everybody sees."

"Life is not a problem to be solved, but a reality to be experienced."

"Complementarity is a central concept in quantum mechanics."

"In biology we are not dealing with inanimate matter, but with living processes."

"The more success the quantum theory has, the sillier it looks."