Just remember β€” if you are really and truly determined to work with animals, somehow, either now or later, you will find a way to do it. But you have to want it desperately, work hard, take advantage of an opportunity β€” and never give up.

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

Every individual matters. Every individual has a role to play. Every individual makes a difference.

The least I can do is speak out for the hundreds of chimpanzees who, right now, sit hunched, miserable and without hope, staring out with dead eyes from their metal prisons. They cannot speak for themselves.

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.

The greatest danger to our future is apathy. We cannot expect those living in poverty and ignorance to worry about saving the world. For those of us able to read this magazine, it is different. We can do something to preserve our planet.

Lasting change is a series of compromises. And compromise is alright, as long your values don't change.

We can't leave people in abject poverty, so we need to raise the standard of living for 80% of the world's people, while bringing it down considerably for the 20% who are destroying our natural resources.

I wanted to talk to the animals like Dr. Dolittle.

Today it is generally accepted that although the earliest humans probably ate some meat, it was unlikely to have played a major role in their diet. Plants would have been a much more important source of food.

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

The long hours spent with them in the forest have enriched my life beyond measure. What I have learned from them has shaped my understanding of human behavior, of our place in nature.