People want to work with somebody who feels shame, who worries about the perceptions of others. Dishonesty is something we don't like in others.

It is not only visitors to the zoo who are fascinated but uneasy in the presence of chimpanzees; the same is true of scientists. The more they learn about these great apes, the deeper our identity crisis seems to become. The resemblance between humans and chimpanzees is not only external. If we look straight and deep into a chimpanzee’s eyes, an intelligent, self-assured personality looks back at us. If they are animals, what must we be?

The more self-aware an animal is, the more empathetic it tends to be.

It wasn't God who introduced us to morality; rather, it was the other way around. God was put into place to help us live the way we felt we ought to.

We justify the inequalities by saying some people are just better and smarter than others and the strong should survive and the poor can die off.

When it comes to social interaction, the chimpanzees appear to be just as intelligent as we are.

It is well known that apes in the wild offer spontaneous assistance to each other, defending against leopards, say, or consoling distressed companions with tender embraces.