Magic causes as much trouble as it cures.

There you go, Harry!” Ron shouted over the noise. “You weren’t being thick after all — you were showing moral fiber!

Play to your strengths." "I haven’t got any," said Harry, before he could stop himself. "Excuse me," growled Moody, "you’ve got strengths if I say you’ve got them. Think now. What are you best at?

Montague's just been found in a toilet, Sir.

It is one of the most hauntingly beautiful places in the world, the history is fascinating, the men are handsome and the whisky is delicious. But don't eat the macaroni pies.

Power was my weakness and my temptation.

Yeah, but coming from Dudley that's like "I love you.