Who is the author of the basic moral norms that most human beings tend to accept? The answer is that the moral norms have not been written. They are ageless and authorless. They are the outcome of the common human experience stretching back to the time when the first humans appeared on this planet. Moral principles, the useful ones, bear a special identification mark which most humans, even the hunter-gatherers of the Stone Age, are able to identify. We instinctively know how to use moral principles. The problem with modern philosophers is that they think that man cannot have a moral theory until the philosophers write it.