I'm personally a nonbeliever, so I'm struggling with if we really need religion.

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

The development of family entities enables men to cooperate far more effectively. Instead of constantly competing for the women with other men, each man essentially has a partner assigned to him, one with whom he can establish a family.

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

You should know as much as you can about the human species if you have a hand in designing human society. Of course, I'm not saying that you can derive moral rules from nature - that's deriving an ought from an is, as the philosophers say - but you do need to know what kind of animals we are if you want to design a stable society.

I have often noticed how primate groups in their entirety enter a similar mood. All of a sudden, all of them are playful, hopping around. Or all of them are grumpy. Or all of them are sleepy and settle down. In such cases, the mood contagion serves the function of synchronizing activities.

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