Change happens by listening and then starting a dialogue with the people who are doing something you don't believe is right.

I had this wonderful, supportive mother who didn't get mad because of all the earth mucking up my bed. She just said they'd die - they needed the earth.

I think anything is better than war. The extent to which one can negotiate with fanatics, I have no idea. I don't know.

I don't even think of chimps as animals. I think of them as beings.

A chimp would never plan to pull another's nails out.

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

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