食物的真正成本不仅是你商店里支付的，更是地球长期付出的代价。

I know what I can do, so it doesn't bother me what other people think or say.

编写无错误程序的方式有两种：只有第三个有效。

The greatest discovery of my generation is that a human being can alter his life by altering his attitudes.

世人所知道的我，并不是实在的我。

只为三个国家制造不值得我花时间；但为全世界制造则非常值得。

只依靠偏见的心灵将永远不稳定。