相信自己和你所拥有的一切。知道你内心有一种力量，比任何障碍都更强大。

It is common sense to take a method and try it. If it fails, admit it frankly and try another. But above all, try something.

In all of us，even in good men，there is a lawless wild-beast nature，which peers out in sleep.

长江大海不会和废弃水井比较浊清，九霄的雷霆不会和的青蛙蚯蚓比斗谁的声响响亮。

可持续性不是一种选择，而是我们对后代的责任。