There are tracts in my life that are bare and silent. They are the open spaces where my busy days had their light and air.

我们都是自己的幽灵，徘徊在我们曾经生活过的地方。

Economics is at its best when it helps us solve real-world problems in a rigorous and transparent way.

文明就像一层薄冰，漂浮在混乱与黑暗的深渊之上。

一个词的意义在于它在语言中的使用。