If you do microcredit with men, they tend to quickly drink it. They don't pay you back.

But let us not forget that human love and compassion are equally deeply rooted in our primate heritage, and in this sphere too our sensibilities are of a higher order of magnitude than those of chimpanzees.

If you consciously say 'I won't do it!' to yourself, then you have a good chance that you won't.

I wasn't trying to be a scientist. I only ever wanted to be a naturalist, like a David Attenborough.

From my perspective, I absolutely believe in a greater spiritual power, far greater than I am, from which I have derived strength in moments of sadness or fear. That's what I believe, and it was very, very strong in the forest.

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.

I am living in the Africa I have always longed for, always felt stirring in my blood.