My philosophy joke: Plato gets pulled over for speeding. He rolls down the window for the cop; the cop, eyeing Plato's toga, assumes he's dealing with a delinquent frat boy. ""You thought you'd get away doing 90 in a 65? What do you take me for, a fool?"" Plato looks up: ""Of course notclearly I'm the fool, officer."" So the cop makes him walk the divided line.