Being evil is something that only humans are capable of.

It's not Africa that is destroying the African rainforest, it's selling concessions to timber companies that are not African, they are from the developed world - Japan, America, Germany, Britain.

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

The person who has the most influence on me is my mother. Think of life as a flight where we fly higher and higher. If I were a bird that needs feathers to fly higher, I would regard my mother as my strongest feather.

The more we spread the word, the further it will go and more it will change!

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

Someday we shall look back on this dark era of agriculture and shake our heads. How could we have ever believed that it was a good idea to grow our food with poisons?