Indifference and neglect often do much more damage than outr... - J.K. Rowling, Harry Potter and the Order of the Phoenix

"Harry, don't go picking a row with Malfoy, don't forget, he's a prefect now, he could make life difficult for you...""Wow, I wonder what it'd be like to have a difficult life?"said Harry sarcastically."

"His priority did not seem to be to teach them what he knew, but rather to impress upon them that nothing, not even... knowledge, was foolproof."

"It unscrews the other way."

"Don’t put your wand there, boy! ... Better wizards than you have lost buttocks, you know!"

"Is it true that you shouted at Professor Umbridge?""Yes.""You called her a liar?""Yes.""You told her He Who Must Not Be Named is back?""Yes.""Have a biscuit, Potter."