My past is my motivation.
我的过去是我的动力。
No matter what happens in life, be good to people. Being good to people is a wonderful legacy to leave behind.
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.
The truth is: the natural world is changing. And we are totally dependent on that world. It provides our food, water and air. It is the most precious thing we have and we need to defend it.
世界是一本书，不旅行的人只读了一页。