Harry potter quotes

Dudley: They stuff people's heads down the toilet the first day at Stonewall. Want to come upstairs and practice?

Harry: No, thanks. The poor toilet's never had anything as horrible as your head down it -- it might be sick.

"Of course this is all happening inside your head, Harry, but why would that mean it's not real?" - Dumbledore

Also:

"I've always wanted to use that spell!" - McGonagall