The notion that we've made vast moral progress and are now a less violent species is belied by our awesome powers of destruction, our military might, police forces as well-armed as soldiers. Without the threat of such violent force behind it, all law would be meaningless. I prefer stories that remind us of that. At its core, history is a story of violence at work. It all comes down to the old saw that, however much you can gain with a kind word, you can gain more with a kind word and a gun.