Man is the measure of all things to man, because man is the only system of measurement available to man. God is a system of measurement in the group’s ideal of man to imitate (as in Jesus, or Achilles) a demigod to aspire to (Odin, Hercules), a god to negotiate with (zeus, thor, tyr), one to obey (jehova, allah), or one to simply understand (deism, the physical and natural laws). Any creature inventing a god would invent one in his image just as we have – and just as the hundreds of gods have been invented abandoned or lost before the present gods.