We have so far to go to realize our human potential for compassion, altruism, and love.

Empathy is really important.. Only when our clever brain and our human heart work together in harmony can we achieve our full potential.

It's the bond between mother and child, which is really for us and for chimps and other primates, the root of all the expressions of social behavior.

Chimps are very quick to have a sudden fight or aggressive episode, but they're equally as good at reconciliation.

I don't have any idea of who or what God is. But I do believe in some great spiritual power. I feel it particularly when I’m out in nature. It’s just something that's bigger and stronger than what I am or what anybody is. I feel it. And it's enough for me.

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.

Some people say, therefore, that violence and war are inevitable. I say rubbish: Our brains are fully capable of controlling instinctive behavior.