永远不要低估合作的力量。
——《在山西实业界学界及各党派欢迎会的演说》(1912年9月20日)
The less secure a man is, the more likely he is to have extreme prejudice.
数学不仅仅是一系列抽象概念的集合,而是一种让我们理解宇宙的语言。
I've always been a private person, but I understand that comes with the territory.