你必须为梦想而战，没有人会把梦想拱手相送。

To turn caring into action, we need to see a problem, see a solution, and see the impact. But complexity blocks all three steps.

政治语言旨在使谎言听起来真实，使谋杀显得可敬，给纯粹的空气以坚实的外表。

The best decisions are made when we listen more than we speak.

经济模型的价值在于其解释和预测的能力。