过去从未死去。它甚至还没有过去。

可持续发展不仅是一种趋势，更是我们对后代的责任。

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.

简单生活，高尚思考：这是通往真正幸福的道路。