“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...”

“We come to love not by finding a perfect person, but by learning to see an imperfect person perfectly.”

“When the people whom we love the most leave us, we start learning to live with the shadows they have left inside us.”

“The learnin' mind is the livin' mind... an' any sort o' smart is truesome smart, old smart or new, high smart or low.”

“I can accept failure, everyone fails at something. But I can't accept not trying.”

“I was trying to be this person who is cool, eternally rocking.”

“That's what we want to do here at Johnson Space Center. I think what we have always brought to NASA and brought to the country is trying to push the boundaries, trying to go to the next level.”

“The more clearly you understand yourself and your emotions, the more you become a lover of what is.”

“There are only two ways to live your life: as though nothing is a miracle, or as though everything is a miracle.”

“The moral of the tale is, don't live for the approval of others. The real you is here to find out the secret of life, not to satisfy someone else's opinion.”