黑眼豆豆是一场运动，不仅仅是一个组合。

每种心理状态都有其存在的目的；要理解它，我们必须询问它在更广泛的行为系统中发挥什么功能。

你必须明白，爱不会阻止一个人追求他的个人传奇。如果他放弃了追求，那是因为这不是真爱。

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.

By used books. They have the same words as the new ones. Also libraries.