人们不应该研究这样的问题，应该把它们留给哲学家。

诗人是一个能看到看不见的东西并听到听不到的声音的人。

His back’s as crooked as a politician.

The ideas of economists and political philosophers， both when they are right and when they are wrong， are more powerful than is commonly understood. Indeed the world is ruled by little else. Practical men， who believe themselves to be quite exempt from any intellectual influence， are usually the slaves of some defunct economist.