Most men probably wouldn't want to live the lives of bonobos. They're constantly clinging to their mothers' apron strings. They lack the ability to make decisions about their own fates, something that we and male chimpanzees practically consider our birthright.

We are by far the most contradictory of all primates. An animal with this much internal conflict has never lived on this earth.

There's actually a lot of evidence in primates and other animals that they return favors.

You need to indoctrinate empathy out of people in order to arrive at extreme capitalist positions.

If both parties have a stake in the other, the chances of them killing each other are going to be reduced.

Wild groups of chimpanzees attack their enemies like gangs. What they completely lack, precisely because of their strong territorial behavior, is a friendly relationship with their neighbors.

Future benefits rarely figure in the minds of animals.