If you think you understand it, that only shows that you don't know the first thing about it.
Niels BohrIf you have a correct statement, then the opposite of a correct statement is of course an incorrect statement, a wrong statement. But when you have a deep truth, then the opposite of a deep truth may again be a deep truth.
Niels BohrAnybody who is not shocked by this subject has failed to understand it. [of quantum mechanics]
Niels Bohr