“When we are tired, we are attacked by ideas we conquered long ago.”

“There is no future without a past, because what is to be cannot be imagined except as a form of repetition.”

“In the end, your past is not my past and your truth is not my truth and your solution - is not my solution.”

“The truth." Dumbledore sighed. "It is a beautiful and terrible thing, and should therefore be treated with great caution.”

“The truth is rarely pure and never simple.”

“Never tell the truth to people who are not worthy of it.”