Hermione: You! You foul, loathsome, evil little cocroach! Ron: Hermione, no! He's no worth it.

To have been loved so deeply, even though the person who loved us is gone, will give us some protection forever.

She had a way of moving that moved him as much as music, which was what moved him most of all. Surely the spirit animating that pearless body must be unusual too? Why would nature make a vessel like that, if not to contain something still more valuable?

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

Why, dear boy, we don't send wizards to Azkaban just for blowing up their aunts.

Well, better expelled and able to defend yourselves than sitting safely in school without a clue," said Sirius.

Never tickle a sleeping dragon.