Never tickle a sleeping dragon.

I sometimes find, and I am sure you know the feeling, that I simply have too many thoughts and memories crammed into my mind. “At these times, I use the Pensieve. One simply siphons the excess thoughts from one’s mind, pours them into the basin, and examines them at one’s leisure. It becomes easier to spot patterns and links, you understand, when they are in this form.

Your devotion is nothing more than cowardice. You would not be here if you had anywhere else to go.

Did you like question ten, Moony?" asked Sirius as they emerged into the entrance hall. "Loved it," said Lupin briskly. "Give five signs that identify the werewolf. Excellent question." "D'you think you managed to get all the signs?" said James in tones of mock concern. "Think I did," said Lupin seriously, as they joined the crowd thronging around the front doors eager to get out into the sunlit grounds. "One: He's sitting on my chair. Two: He's wearing my clothes. Three: His name's Remus Lupin.

Enemies of the Heir, beware! You'll be next, Mudbloods!

Dumbledore says people find it far easier to forgive others for being wrong than being right.

Strange how short-sighted being invisible can make you.