Selfish Reasons for Civilized Behavior

The nihilist in me isn’t too interested in moralizing to my children about right and wrong. Yes, I believe in ethics and morality, but no, I do not believe that we are obligated to anyone but ourselves to be good and moral people. If we aren’t obligated to anyone but ourselves, then any reason why find to be good and moral must necessarily be selfish. Right? I think so. And after polling some friends on what they considered “civilized behavior,” here are some actions and the selfish reasons to perform them.