Professor, why couldn't we just Apparate directly into your old colleague's house?' 'Because it would be quite as rude as kicking down the front door,' said Dumbledore. 'Courtesy dictates that we offer fellow wizards the opportunity of denying us entry.

Oh, get out of the way, Percy,” said Fred. “Harry’s in a hurry.” “Yeah, he’s off to the Chamber of Secrets for a cup of tea with his fanged servant,” said George, chortling.

Stop, stop, stop, you're going to poke someone's eye out!

He had fought back with every weapon in his arsenal, being alternatively obtuse, evasive and pedantic, for it was wonderful how you could obscure an emotional issue by appearing to seek precision.

I believe your friends Misters Fred and George Weasley were responsible for trying to send you a toilet seat. No doubt they thought it would amuse you.

Years ago someone wrote [about me]: 'She characterizes Molly Weasley as a mother who is only at home looking after the children.' I was deeply offended, because I until a year before that had also been such a mother who was at home all the time taking care of her child [...] What has lesser status and is more difficult than raising a child? And what is more important?

Even You-Know-Who can't split himself into seven.