I think the most important thing is to be honest and truthful with what you say and what you do.

Grain isn't just a commodity; it's the foundation of civilization.

人们可以非常聪明或拥有直接适用的技能，但如果他们不真正相信它，那么他们就不会真正努力工作。

The improvement of understanding is for two ends: first, our own increase of knowledge; secondly, to enable us to deliver that knowledge to others.

The only thing that makes life possible is permanent, intolerable uncertainty; not knowing what comes next.

种一棵树最好的时间是20年前，第二好的时间是现在。