Chimpanzees, more than any other living creature, have helped us to understand that there is no sharp line between humans and the rest of the animal kingdom. It's a very blurry line, and it's getting more blurry all the time.

There isn't a sharp line dividing humans from the rest of the animal kingdom. All the time, we find animals doing things that, in our arrogance, we thought were just human.

Every individual can make a difference every day by making conscious choices.

Chimps are very quick to have a sudden fight or aggressive episode, but they're equally as good at reconciliation.

Animals are as deserving of a place on this planet as we are, and the difference between us is that humans have a voice they can use to help the animal cause, and it is up to all of us to use it to make a positive difference!

When you borrow you plan to pay back. We're stealing from our children - so many people have no intention of paying back.

I believe that the tragedy [like terror attack] that's caused so much grief and suffering to so many thousands and thousands of people has also served as a call to action, because many people now are re-examining their own value systems, and the churches, temples, mosques and cathedrals are packed to overflowing for the first time in years.