"You notice I use the term 'evolve.' You see, back here in your time, man is just a toddler in terms of values. From what I've read of this historical time, man's values still revolved around cloaking individual wants in desires in the guise of deities. 'Organized religion' is what I think it's called--where man's base desires have been sugar-coated and encased in mystical and unquestioned dogma. So the caveman's base instinct of killing for food, protecting his tribe, satiating their desires, is still the main motivations--it's just that in this century, it has been dangerously hidden behind worship of a god or gods, thus leading to uncritical review of man's actions. We've since learned this to be so and have thus gone beyond it.