I feel a desperation to make people see what we are doing to the environment, what a mess we are making of our world. At this point, the more people I reach, the more I accomplish. ... I miss Gombe and my wonderful years in the forest But if I were to go back to that, I wouldn't feel I was doing what I should be doing.

Chimps are unbelievably like us - in biological, non-verbal ways. They can be loving and compassionate and yet they have a dark side... 98 per cent of our DNA is the same. The difference is that we have developed language - we can teach about things that aren't there, plan for the future, discuss, share ideas

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.

Only if we understand, can we care. Only if we care, we will help. Only if we help, we shall be saved.

It's not a pretty picture, but there are reasons for hope.

I think the most important thing to do is to be willing to listen, willing to care, and willing to admit mistakes and change your ways for the better!

You have to realise that touching is a real violation of personal space.