If knowledge can create problems, it is not through ignorance that we can solve them.

Success is not final, failure is not fatal: it is the courage to continue that counts.

美国农业面临的最大危险是家庭农场的消失。

权力平衡是维持国际体系和平的唯一途径。

The most important thing I have learned is that the best way to get something done is to begin.

睡眠是好的，死亡更好；但当然，最好的事情是从未出生。

A long habit of not thinking a thing wrong, gives it a superficial appearance of being right.

我从不猜测。在拥有数据之前进行理论化是一个重大错误。不知不觉中，人们开始扭曲事实以适应理论，而不是调整理论以适应事实。