The dementors send their love, Potter!

Never be ashamed! There's some who'll hold it against you, but they're not worth bothering with.

Life, for Colin, was one long brace against pain and disappointment, and everybody apart from his wife was an enemy until proven otherwise.

Lily and James only made you Secret-Keeper because I suggested it,” Black hissed, so venomously that Pettigrew took a step backward. “I thought it was the perfect plan... a bluff... Voldemort would be sure to come after me, would never dream they’d use a weak, talentless thing like you... It must have been the finest moment of your miserable life, telling Voldemort you could hand him the Potters.

Don't count your owls before they are delivered.

Ron, we're supposed to show the first years where to go!" "Oh yeah," said Ron, who had obviously forgotten. "Hey -- hey you lot! Midgets!

Deliberately causing mayhem in Snape's Potions class was about as safe as poking a sleeping dragon in the eye.