“Apes have a wide variety of sexual arrangements. That means, by the way, that there is no such thing as an ape legacy that humans are doomed to live by.”

“Even evolutionary explanations of the traditional division of labor by sex do not imply that it is unchangeable, natural in the sense of good, or something that should be forced on individual women...”

“As technology accumulates and people in more parts of the planet become interdependent, the hatred between them tends to decrease, for the simple reason that you can't kill someone and trade with h...”

“Instead of asking, Why is there war? we might ask, Why is there peace? We can obsess not just over what we have been doing wrong but also over what we have been doing right. Because we have been do...”

“The main reason that violence correlates with low socioeconomic status today is that the elites and the middle class pursue justice with the legal system while the lower classes resort to what scho...”

“Friendship, like other kinds of altruism, is vulnerable to cheaters, and we have a special name for them: fair-weather friends. These sham friends reap the benefits of associating with a valuable p...”

“Let us not seek to satisfy our thirst for freedom by drinking from the cup of bitterness and hatred.”

“Of course, peace treaties are very attractive to those who sign them. They strengthen one's prestige with the electorate. But the time will come when the names of these public figures will be erase...”

“How would I explain to him that I couldnt make peace with him? How would I explain that if I did I would immediately lose my inner balance? How would I explain that one of the arms of my internal s...”