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

It was both fascinating and appalling to learn that chimpanzees were capable of hostile and territorial behavior that was not unlike certain forms of primitive human warfare.

Realize that change - whilst we want it to happen fast - is usually the result of a great deal of work, and often comes as a result of a series of compromises (so long as we do not compromise our values).

Most Africans don't get to see these wild animals at all. Once they see and learn about them, they are much more likely to become involved in protecting the environment.

I have found that to love and be loved is the most empowering and exhilarating of all human emotions.

Successful actors and actresses have to get themselves into their roles before acting. Therefore, you need to really care about what you are saying.

I never wanted to give up. I thought I might have to. Especially at the beginning when chimpanzees had never seen a white person before.They gave one look at me and ran away! They were scared, but eventually I got their trust.