The Potter books in general are a prolonged argument for tolerance, a prolonged plea for an end to bigotry. And I think it's one of the reasons that some people don't like the books, but I think that's it's a very healthy message to pass on to younger people that you should question authority and you should not assume that the establishment or the press tells you all of the truth.

Don’t put your wand there, boy! ... Better wizards than you have lost buttocks, you know!

Dumbledore raised his finger for silence, a silence which fell as though he had struck Uncle Vernon dumb.

Yeah, Quirrell was a great teacher. There was just that minor drawback of him having Lord Voldemort sticking out of the back of his head!

Don't be sorry, my dear sir, for nothing could upset me today! Rejoice, for You-Know-Who is gone at last! Even muggles like yourself should be celebrating this happy, happy day.

Oh, that,' said Ginny, giggling. 'Well-Percy's got a girlfriend.' Fred dropped a stack of books on George's head. 'What?' 'It's that Ravenclaw prefect, Penelope Clearwater,' said Ginny. 'That's who he was writing to all last summer. He's been meeting her all over the school in secret. I walked in on them kissing in an empty classroom one day. He was so upset when she was-you know-attacked. You won't tease him, will you?' she added anxiously. 'Wouldn't dream of it,' said Fred, who was looking like his birthday had come early.

The fates have informed me that your examination in June will concern the Orb, and I am anxious to give you sufficient practice. Hermione snorted. "Well honestly... 'the fates have informed her'... Who sets the exam? She does!