In international trade, a country should specialize in the production of goods for which it has a comparative advantage, and trade with other nations to maximize overall economic welfare.

我经历了很多，但我依然屹立不倒。

最重要的，拥有跟随内心与直觉的勇气，你的内心与直觉多少已经知道你真正想要成为什么样的人。