Every seed we plant today is an investment in tomorrow's food security.

拍卖的价值不仅在于产生的收益，还在于分配的效率。

The best way to learn econometrics is by doing—working with real data and real problems.

目的的概念在行为的科学解释中没有位置。

The best films are those that stay with you long after you've left the theater.

如果你没有敌人，那你就已经死了。