“I am certain there is too much certainty in the world.”

“The risk is too great. A man cannot place too much faith in any one thing, neither a woman, nor a horse, nor a weapon, nor any single thing.”

“Personally, I don't deal much in theory. I have to deal with the facts. And on the basis of facts, I don't see much difference in the behavior of men and women.”

“Often I feel I go to some distant region of the world to be reminded of who I really am. There is no mystery about why this should be so. Stripped of your ordinary surroundings, your friends, your daily routines, your refrigerator full of your food, your closet full of your clothes -- with all this taken away, you are forced into direct experience. Such direct experience inevitably makes you aware of who it is that is having the experience. That's not always comfortable, but it is always invigorating.”

“The planet has survived everything, in its time. It will certainly survive us.”

“At forty, I was too old to work as a programmer myself anymore; writing code is a young person’s job.”

“But now science is the belief system that is hundreds of years old. And, like the medieval system before it, science is starting not to fit the world any more. Science has attained so much power that its practical limits begin to be apparent. Largely through science, billions of us live in one small world, densely packed and intercommunicating. But science cannot help us decide what to do with that world, or how to live. Science can make a nuclear reactor, but it cannot tell us not to build it. Science can make pesticide, but cannot tell us not to use it. And our world starts to seem polluted in fundamental ways---air, and water, and land---because of ungovernable science.”