If we allow the destruction of the environment, we can see the terrorists have utterly won, and are destroying the future of our children and grandchildren. We must not let that happen.

It's not that humans and non-humans are identical... but the lack of understanding that led to the slave trade is the same lack of understanding many people have about animals today. When slaves were brought over from Africa, many people believed they were not humans, that they didn't have feelings. Many people believe that primates and other animals don't have feelings, too, but they do.

It was because the chimps are so eye-catching, so like us and teach us so much that my work was recognised worldwide.

It made me feel particularly sickened to know that this kind of callous attitude toward animals is repeated again and again in laboratories around this country.

I think I'd like to be remembered as someone who really helped people to have a little humility and realize that we are part of the animal kingdom not separated from it.

The cheapest and most efficient way of slowing down global warming is to protect and restore the forests, particularly the tropical forests

If harsher laws are put in place, less will dare to break them.