We are unique. Chimpanzees are unique. Dogs are unique. But we humans are just not as different as we used to think.

Chimpanzees can be quite political.

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.

We have a responsibility toward the other life-forms of our planet whose continued existence is threatened by the thoughtless behavior of our own human species. . . . Environmental responsibility – for if there is no God, then, obviously, it is up to us to put things right.

I cannot remember a time when I did not want to go to Africa to study animals.

If you do microcredit with men, they tend to quickly drink it. They don't pay you back.

I think the most important thing to do is to be willing to listen, willing to care, and willing to admit mistakes and change your ways for the better!