Quote by Bohr, Niels
"Nature does not give up her secrets easily; she rewards the persistent and the clever."
More from 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."