Crabbed age and youth cannot live together.
Ooh, you look much tastier than Crabbe and Goyle, Harry" said Hermione, before catching sight of Ron's raised eyebrows, blushing slightly and saying "oh you know what I mean - Goyle's Potion looked like bogies.
Deceivers are the most dangerous members of society. They trifle with the best affections of our nature, and violate the most sacred obligations.