"I’ll make Goyle do lines, it’ll kill him, he hates writing,” said Ron happily. He lowered his voice to Goyle’s low grunt and, screwing up his face in a look of pained concentration, mimed writing in midair. “I... must... not... look... like... a... baboon’s... backside."
"Why were you lurking under our window?""Yes - yes, good point, Petunia! What were you doing under our windows, boy?""Listening to the news,"said Harry in a resigned voice.His aunt and uncle exchanged looks of outrage."Listening to the news! Again?""Well, it changes every day, you see,"said Harry."
"Hello, Harry"said George, beaming at him. "We thought we heard your dulcet tones.""You don't want to bottle up your anger like that, Harry, let it all out,"said Fred, also beaming. "There might be a couple of people fifty miles away who didn't hear you."
"Indifference and neglect often do much more damage than outright dislike."
"Give her hell from us, Peeves."
"Wit beyond measure is a man's greatest treasure."