看不见的手之所以常常看不见，是因为它常常不存在。
The reason that the invisible hand often seems invisible is that it is often not there.
Tragic art, as it developed in the theaters of ancient Greece, in the fifth century B.C., was essentially an art form devoted to tracing how people fail, and also according them a level of sympathy, which ordinary life would not necessarily accord them. A few years ago, I was thinking about this, and I went to "The Sunday Sport," a tabloid newspaper I don't recommend you start reading if you're not familiar with it already.
The future of energy lies in balancing economic growth with environmental stewardship.
我总是努力比昨天的自己更好。
心理学家必须避免一切目的论的解释。
我不相信贫穷，我相信努力工作。