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.
The young do not know enough to be prudent, and therefore they attempt the impossible, and achieve it, generation after generation.
坚持做自己,因为没有人能代替你。
The purpose of education is to make up for the shortcomings in our instinctive ways of thinking.