The right of nature... is the liberty each man hath, to use his own power, as he will himself, for the preservation of his own nature; that is to say, of his own life.
经济学中最重要的思想是简单的，但它们的影响是深远的。
The only thing that is truly important is the impact you have on others.
我们智慧的最大证明是我们能够察觉自己的局限。
The past is a teacher, if we are willing to learn.
"I am not interested in the psychology of characters, but in the psychology of situations."