It was because the chimps are so eye-catching, so like us and teach us so much that my work was recognised worldwide.

I was even accused of teaching the chimps how to fish for termites which I mean that would have been such a brilliant coup.

If we kill off the wild, then we are killing a part of our souls.

The least I can do is speak out for the hundreds of chimpanzees who, right now, sit hunched, miserable and without hope, staring out with dead eyes from their metal prisons. They cannot speak for themselves.

I think the most important thing is to keep active, and to hope that your mind stays active.

Especially females and the younger ones like to be with somebody who is wise.

You can't do everything. You can't do health and forestry and agriculture. You've got to focus and do one or the other.