大自然是最好的老师;它已经做了实验,我们只需要解读它们。
Nature is the best teacher; it has already done the experiments, we just have to interpret them.
行义事不能进行时,不要责怪道义。 
One of the great mistakes is to judge policies and programs by their intentions rather than their results.
奥运会上最重要的不是胜利,而是参与;人生中最重要的不是征服,而是奋力拼搏。
我们在Facebook上试图做的事情,就是帮助人们更有效地连接和沟通。
The ocean is not a bottomless pit; resources are limited, and only by respecting nature can we achieve long-term development.