But does that mean that war and violence are inevitable? I would argue not because we have also evolved this amazingly sophisticated intellect, and we are capable of controlling our innate behavior a lot of the time.

When I go back to Gombe it's to be in that timeless world where it's soft and where life is entwined and you actually see the pattern of nature. I always feel this great spiritual power which I believe is around.

Well, in some ways we're not successful at all. We're destroying our home. That's not a bit successful.

When I was a child, the African forest sounded like a dream to me, because it was full of animals and it was wild.

So long as we continued to attach more importance to our own narrow group membership than to the 'global village' we would propagate prejudice and ignorance. There was absolutely no harm in being part of a small group - indeed, with our hunter-gatherer band mentality it gave comfort, provided us with an inner circle of friends who could be utterly trusted, who were absolutely reliable. It helped give us peace of mind. The danger came only from drawing that sharp line, digging that ditch, laying that minefield, between our own group and any other group that thought differently.

Never be arrogant or abrasive. Treat your opponent respectfully if they really and truly believe they are right.

You're thinking about putting scientists into small cages and doing research on them. I wish it could happen sometimes.