I can't give a Professor love! - J.K. Rowling, Harry Potter and the Deathly Hallows

"So why in the name of Merlin’s saggy left —”“Don’t talk to your mother like that."

"Albus Severus,"Harry said quietly, so that nobody but Ginny could hear, and she was tactful enough to pretend to be waving to Rose, who was now on the train, "you were named for two headmasters of Hogwarts. One of them was a Slytherin and he was probably the bravest man I ever knew."

"Yeah, but the lost diadem,"said Michael Corner, rolling his eyes, "is lost, Luna. That's sort of the point."

"Would you like me to [kill you] now?"asked Snape, his voice heavy with irony. "Or would you like a few moments to compose an epitaph?"

"Here lies Dobby, a free elf."