Percy wouldn't notice a joke if it danced naked in front of... - J.K. Rowling, Harry Potter and the Goblet of Fire

"She should've interviewed Snape,"said Harry grimly. "He'd give her the goods on me any day. "Potter has been crossing lines ever since he first arrived at this school..."

"It is my belief... that the truth is generally preferable to lies."

"Don't talk to me.""Why not?""Because I want to fix that in my memory for ever. Draco Malfoy, the amazing bouncing ferret..."

"Remember, if the time should come when you have to make a choice between what is right and what is easy, remember what happened to a boy who was good, and kind, and brave, because he strayed across the path of Lord Voldemort. Remember Cedric Diggory."

"I have gone temporarily deaf and haven't any idea what you said, Harry."