What keeps the world running?  Is it the Internet, markets or governments that print money as needed?  It's definitely not politicians!  No, the reality is that these all threaten to bring the world to its knees.   In one word, it is faith!  You have faith that another nation will keep its alliances and treaties, faith in your coworkers and faith in your husband or wife that he or she will live up to the promises you made to each other.