Too many people today know the price of everything and the value of nothing.

Know when to tune out, if you listen to too much advice you may wind up making other peoples mistakes.

The true measure of a man is how he treats someone who can do him absolutely no good.

LISP programmers know the value of everything and the cost of nothing.

Know yourself. Don't accept your dog's admiration as conclusive evidence that you are wonderful.

I don't believe that you have to be a cow to know what milk is.