I'm almost 100% sure this has been pointed out before, but if it hasn't, "There's two kinds of people in the world, doc: those who have a plan prepared for when zombies take over the earth, and those who don't. We call those last people dinner." You quoted it incorrectly. :P "There are 10 kinds of people in this world, those who know binary and those who don't." There are 3 kinds of people in this world, those who can count, and those who can't.