"There are some things you can't share without ending up liking each other, and knocking out a twelve-foot mountain troll is one of them."
"Everybody finished the song at different times. At last, only the Weasley twins were left singing along to a very slow funeral march."
"Call him Voldemort, Harry. Always use the proper name for things. Fear of a name increases fear of the thing itself."
"It takes a great deal of bravery to stand up to our enemies, but just as much to stand up to our friends."
"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."
"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."