The greatest discovery is that human beings can alter their lives by altering the attitudes of their minds.

The only way to tell the truth is to speak with authority, and the only way to speak with authority is to claim the right to tell the truth.

Art is the bridge between the visible and the invisible.

解释：不通过学习而能自己知道的，不去请教他人而能自己通晓的，从古到今没有这样的事。

货币政策中的时间不一致性问题出现在政策制定者一旦经济主体形成预期后，就有动机偏离他们宣布的政策。