I think we need to start thinking about grounding our moral systems in our biology.

The more self-aware an animal is, the more empathetic it tends to be.

When we are bad, we are worse than any primate that I know. And when we are good, we are actually better and more altruistic than any primate that I know.

When someone brutally kills someone else, we call him "animalistic." But we consider ourselves "human" when we give to the poor.

Bonobo studies started in the '70s and came to fruition in the '80s. Then in the '90s, all of a sudden, boom, they ended because of the warfare in the Congo. It was really bad for the bonobo and ironic that people with their warfare were preventing us from studying the hippies of the primate world.

Personally, I think it is possible to build a society that is moral on a nonreligious basis, but the jury is still out on that.

If both parties have a stake in the other, the chances of them killing each other are going to be reduced.