The end of history will be a very sad time. The struggle for recognition, the willingness to risk one's life for a purely abstract goal, the worldwide ideological struggle that called forth daring, courage, imagination, and idealism, will be replaced by economic calculation, the endless solving of technical problems, environmental concerns, and the satisfaction of sophisticated consumer demands.

我们用数学来理解市场，而不是预测市场。

Writing is a way to make sense of the world.

Great deeds are usually wrought at great risks.

一个人重要的是他谈论什么、而不是他赞同或不赞同什么。