“Youth can not know how age thinks and feels. But old men are guilty if they forget what it was to be young.”

“Age is foolish and forgetful when it underestimates youth.”

“I know what you are known as . . . but to me, you will always be Tom Riddle. It is one of the irritating things about old teachers. I am afraid that they never quite forget their charges’ youthful beginnings.”

“You haven't got a letter on yours," George observed. "I suppose she thinks you don't forget your name. But we're not stupid-we know we're called Gred and Forge.”

“Unlike any other creature on this planet, human beings can learn and understand without having experienced. They can think themselves into other peoples’ places. Of course, this is a power like my brand of fictional magic that is morally neutral. One might use such a power to manipulate or control, just as much as to understand or sympathize. And many prefer not to exercise their imaginations at all. They choose to remain comfortably within the bounds of their own experience, never troubling to wonder how it would feel to have been born other than they are. They can refuse to hear screams or peer inside cages. They can close their hearts and minds to any suffering that does not touch them personally. They can refuse to know. I might be tempted to envy people who can live that way, except that I do not think that they have any fewer nightmares than I do.”

“Well, I don’t know how to break this to you, but I think they might have noticed we broke into Gringotts.”

“There is no shame in what you are feeling, Harry,' said Dumbledore's voice. 'On the contrary... the fact that you can feel pain like this is your greatest strength.”