There seem to be solid biological reasons why we are the way we are. If there weren’t, the cycles wouldn’t keep replaying. The human species is a kind of animal, of course. But we can do something no other animal species has ever had the option to do. We can choose: We can go on building and destroying until we either destroy ourselves or destroy the ability of our world to sustain us. Or we can make.
Parable of the Talents, Ocatvia E. Butler