"No matter how much and often it is betrayed and violated, the “Golden Rule” remains a moral standard theoretically valid for all human beings, be they religious or not. …This Rule is defined as made of gold because it grants, if observed and implemented, true justice, hence unlimited peace. …Its secret is quite simple. No one of us wants to suffer evil. If others are expected to do to us what we do to them, to suffer no evil it is then enough to avoid doing evil. It is so simple in theory that it is difficult in practice. Probably this is why an elementary principle like this needs a divine book to be taught time and again."