Market failures are often not failures of markets, but failures of market design.

The knowledge that you have emerged wiser and stronger from setbacks means that you are, ever after, secure in your ability to survive. You will never truly know yourself, or the strength of your relationships, until both have been tested by adversity. Such knowledge is a true gift, for all that it is painfully won, and it has been worth more than any qualification I ever earned.

饥饿了就想吃饭，寒冷了就想温暖，疲劳了就想休息，爱好利益而厌恶祸害，这是人生下来就具有的本性。

If you surrendered to the air, you could ride it.

如果农民不能有效使用，最先进的技术也毫无价值。