Alas! Earwax! - J.K. Rowling, Harry Potter and the Sorcerer's Stone

"No, thanks,"said Harry. "The toilet's never had anything as horrible as your head down it— it might be sick."Then he ran, before Dudley could work out what he'd said."

"There is no good and evil, there is only power and those too weak to seek it."

"The truth."Dumbledore sighed. "It is a beautiful and terrible thing, and should therefore be treated with great caution."

"Now, you two – this year, you behave yourselves. If I get one more owl telling me you've – you've blown up a toilet or –""Blown up a toilet? We've never blown up a toilet.""Great idea though, thanks, Mum."

"It does not do to dwell on dreams and forget to live."