George Carlin was a fantastic observational comedian, equally adept at pointing out the absurdities and truths in life.
One of my favorite bits was when he explained "that anyone driving slower than you is an idiot, and anyone going faster is maniac." This summed up his comic philosophy perfectly. We laugh first at his jabs at everyone else's driving. We then laugh as we realize that we've also been skewered for our own short fuses.
He was an equal opportunity comic, and we were all equal opportunity targets.