I'm always pushing for human responsibility. Given that chimpanzees and many other animals are sentient and sapient, then we should treat them with respect.

You know the old expression "We haven't inherited the world from our parents, we've borrowed it from our children"? Well it's just not true. We haven't borrowed anything.

Primates are very territorial. It is in their nature to protect their food resources as well as their females and young.

I cannot remember a time when I did not want to go to Africa to study animals.

My mission is to create a world where we can live in harmony with nature.

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

We're the ones who can make a difference. If we lead lives where we consciously leave the lightest possible ecological footprints, if we buy the things that are ethical for us to buy and don't buy the things that are not, we can change the world overnight.