你可以通过一个人的回答来判断他是否聪明。你可以通过一个人的问题来判断他是否明智。

The wilderness is the greatest teacher. It doesn’t give you answers, but it shows you how to find them.

任何圆的面积等于一个直角三角形，其中一条直角边等于半径，另一条等于圆的周长。

Children understand more than we often give them credit for.

Education is the most powerful weapon which you can use to change the world.

我们这个时代最大的挑战不是技术上的，而是伦理上的。