Facing this stuff, in real life is not like school, in school, if you make a mistake you can just try again tomorrow, but out there...when your a second away from being murdered or watching a friend die right before your eyes...you don't know what that's like.

I must admit, Peter, I have difficulty in understanding why an innocent man would want to spend twelve years as a rat.

I think you have a moral responsibility when you've been given far more than you need, to do wise things with it and give intelligently.

Luck can only get you so far.

Harry, you wonderful boy, you brave, brave man.

Well, you're expelling us aren't you?" said Ron. "Not today, Mr. Weasley." Snape looked as though Christmas had been canceled.

Like the fact that the person Sirius cared for the most about in the world was you," said Dumbledore quietly.