The chimps' way of aggression is quick and brutal. I compare them to gang attacks.

Other people have talked about chimpanzees being a window into the past, which I suppose is true, in a way.

If only we can overcome cruelty, to human and animal, with love and compassion we shall stand at the threshold of a new era in human moral and spiritual evolution - and realize, at last, our most unique quality: humanity.

I still think we are smart enough to not destroy planet Earth, our only home.

And always I have this feeling--which may not be true at all--that I am being used as a messenger.

I believe that accurate knowledge is very, very important, but find that out in free time. Don't let it take over every hour of the day. Perhaps most important, talk about it.

When you meet chimps you meet individual personalities. When a baby chimp looks at you it's just like a human baby. We have a responsibility to them.