There are trivial truths and there are great truths. The opp... - Niels Bohr

"Stop telling God what to do with his dice."

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

"The very nature of the quantum theory ... forces us to regard the space-time coordination and the claim of causality, the union of which characterizes the classical theories, as complementary but exclusive features of the description, symbolizing the idealization of observation and description, respectively."

"Prediction is very difficult, especially about the future."

"You can recognize a small truth because its opposite is a falsehood. The opposite of a great truth is another truth."