Niels Henrik David Bohr

"An expert is a man who has made all the mistakes which can be made, in a narrow field. "

"Anyone who is not shocked by quantum theory has not understood it. "

"Never express yourself more clearly than you are able to think. "

"No, no, you're not thinking, you're just being logical. "

"Sometimes the child in one behaves a certain way and the rest of oneself follows behind, slowly shaking its head. "

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

"There are some things so serious you have to laugh at them. "

"We all agree that your theory is crazy, but is it crazy enough "