A proof is a way to convince yourself and others that something is true.

经济学中最重要的是理解个人和企业的行为。

The world is full of stories, but the stories are all one.

Common sense tells us that performance comes and goes, but costs go on forever.

Light is the essence of architecture; it defines spaces and gives them meaning.

医学研究是一场马拉松，而不是短跑——耐力比速度更重要。

There is no such thing as a happy ending.