Niels Bohr

"The path to truth is paved with failed hypotheses."

"Nature has a sense of humor, but it is usually at our expense."

"The atom is a microcosm of the universe."

"We understand things best when we understand their origins."

"The future of humanity depends on our understanding of nature."

"Reality is a collaborative creation between observer and observed."

"The greatest discovery is that there is always more to discover."

"Science is not the final word on reality; it is merely our best approximation."

"The universe is far more interesting than any story we could invent."

"We are part of nature, not separate from it."

"The pursuit of truth requires the courage to be wrong."

"Every question answered opens new questions."

"Nature speaks plainly to those who listen carefully."

"The greatest theories are the simplest ones that explain the most."

"We must embrace uncertainty as a fundamental feature of reality."

"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."

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

"I go around as a ghost and nothing I say has any effect."

"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."

"We are suspended in language in such a way that we cannot say what is up and what is down."

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

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

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

"Complementarity is a strange concept. It means that two apparently contradictory assertions are both needed to describe nature."

"Nature isn't classical, dammit, if you want to make a simulation of nature, you'd better make it quantum mechanical."

"One should as a rule respect public opinion in so far as is necessary to avoid starvation and to prevent oneself from being deserted in the street by all one's acquaintances."

"I would never be so arrogant as to think that physics can only be done by me, or that I am indispensable."

"Technology has advanced more in the last thirty years than in the previous two thousand years."

"The paradoxes of logic and set theory, which have so troubled the mathematicians, find their solution in the fact that the axioms of formal logic are not applicable to reality."