Youth can not know how age thinks and feels. But old men are... - J.K. Rowling, Harry Potter and the Order of the Phoenix

"Did you see me disarm Hermione, Harry?""Only once"said Hermione stung. "I got you loads more then you got me—""I did not only get you once, I got you at least three times—""Well if you're counting the one where you tripped over your own feet and knocked the wand out of my hand—"

"Ask us no questions and we’ll tell you no lies."

"My Head of House said I lacked certain necessary qualities...like the ability to behave myself."

"You're a prefect? Oh Ronnie! That's everyone in the family!""What are Fred and I? Next door neighbors?"

"Well, we were always going to fail that one,"said Ron gloomily as they ascended the marble staircase. He had just made Harry feel rather better by telling him how he told the examiner in detail about the ugly man with a wart on his nose in the crystal ball, only to look up and realize he had been describing the examiner's reflection."