现实不是我们感知的东西，而是我们用故事创造的东西。

激励很重要，因为它们以可预测的方式引导行为。

I needed a drink, I needed a lot of life insurance, I needed a vacation, I needed a home in the country. What I had was a coat, a hat and a gun.

知识的每一次进步都会带来新的问题和新的困难。