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

In what terms should we think of these beings, nonhuman yet possessing so very many human-like characteristics? How should we treat them? Surely we should treat them with the same consideration and kindness as we show to other humans; and as we recognize human rights, so too should we recognize the rights of the great apes? Yes.

My mother always taught us that if people don't agree with you, the important thing is to listen to them. But if you've listened to them carefully and you still think that you're right, then you must have the courage of your convictions.

The greatest danger to our future is apathy.

The only possible way to get somebody to change is to reach into their hearts.

The least I can do is speak out for those who cannot speak for themselves.

I had a wonderful teacher about animal behavior - my dog Rusty. He taught me that animals have personalities, minds, and feelings.