柠檬问题发生的原因是卖家比买家更了解产品，从而导致市场失灵。

The best way to be happy is to be grateful.

In Russia, the severity of laws is compensated for by the fact that it is not necessary to execute them.

城市是一台无法逃脱的成瘾机器。

Life is a series of absurdities.

最重要的是对自己诚实。

领导力意味着今天做出艰难的决定，这些决定将使子孙后代受益。