金融模型的真正考验不在于它有多复杂，而在于它是否能很好地捕捉经济问题的本质特征。

The only lies for which we are truly punished are those we tell ourselves.

——在北京蒙藏统一政治改良会欢迎会的演说，1912年9月1日

The greatness of human actions is measured by the inspiration that gives rise to them.

The most exciting aspect of quantum information science is that it forces us to rethink some of our most basic assumptions about reality.

国家的命运是由其人民决定的。