The best relationship you can have with a chimpanzee is total mutual trust.

But does that mean that war and violence are inevitable? I would argue not because we have also evolved this amazingly sophisticated intellect, and we are capable of controlling our innate behavior a lot of the time.

Just remember--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--and never give up.

I believe that accurate knowledge is very, very important, but find that out in free time. Don't let it take over every hour of the day. Perhaps most important, talk about it.

To me, cruelty is the worst of human sins. Once we accept that a living creature has feelings and suffers pain, then by knowingly and deliberately inflicting suffering on that creature, we are guilty, whether it be human or animal.

Become as knowledgeable as possible.

However much you know giraffes, to see one in the wild for the first time feels prehistoric.