谷物生产的创新不仅仅是技术问题，更是思维方式的转变。

——〈在北京基督教等六教会欢迎会的演说〉，1912年9月5日

True progress happens when we listen to both scientists and farmers.

To become truly great, one has to stand with people, not above them.

The world is before you, and you need not take it or leave it as it was when you came in.

每幅画都是自画像，即使它不是。