If there are going to be people out there making war on other people, don't you think it's a good idea for some of those people to at least follow a code of ethics? Not 'honor' but something you can pin down and be sure of, something with the same rules for everybody.
“God and Nature first made us what we are, and then out of our own created genius we make ourselves what we want to be. Follow always that great law. Let the sky and God be our limit and Eternity our measurement.”