“Above all, don't lie to yourself. The man who lies to himself and listens to his own lie comes to a point that he cannot distinguish the truth within him, or around him, and so loses all respect fo...”

“Of all the bright cruel lies they tell you, the cruelest is the one called love.”

“Don't cry, I'm sorry to have deceived you so much, but that's how life is.”

“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.”