生活是10%发生在你身上的事，90%是你如何应对它。

清洁：身体、衣服及住所，力求整洁。

The self is not so much a substance as a process, and it is the continual task of education to change the process, to develop its activities, and to guide it into channels of efficiency.

Sustainable agriculture requires a balance between technology and ecological preservation.

The old-fashioned dictator does not exist under scientific management. The man at the head of the business under scientific management is governed by rules and laws which have been developed through hundreds of experiments just as much as the workman is.

最终，我们记住的不是敌人的话语，而是朋友的沉默。