我从来不想重复自己，每个作品都应该有自己的个性。

Education is a lamp, but too many never find the switch.

The American farmer is the only man in our economy who has to buy everything he buys at retail, sell everything he sells at wholesale, and pay the freight both ways.

创新不仅仅是技术的问题；它是关于改变思维方式，为后代创造可持续的解决方案。