The goal is not just to design a market, but to design one that works well in practice.

Freedom is not merely the opportunity to do as one pleases; neither is it merely the opportunity to choose between set alternatives. Freedom is, first of all, the chance to formulate the available choices, to argue over them—and then, the opportunity to choose.

You don’t need to be perfect to inspire others. Let people get inspired by how you deal with your imperfections.

应该让材料自己说话。

People who say it cannot be done should not interrupt those who are doing it.

真正的创新往往源于质疑他人视为事实的东西。