知革命之真理者，大半由教会所得来。
——〈在北京基督教等六教会欢迎会的演说〉，1912年9月5日
最重要的是永远不要停止提问。
The deepest problems of modern life derive from the claim of the individual to preserve the autonomy and individuality of his existence in the face of overwhelming social forces, of historical heritage, of external culture, and of the technique of life.
I believe in the power of love and kindness.
The discovery of DNA structure was like unraveling a very complex puzzle.