每个人都有不为世人所知的秘密悲伤；我们常常称一个人冷漠，而实际上他只是悲伤。

The fountain of content must spring up in the mind, and they who have so little knowledge of human nature as to seek happiness by changing anything but their own dispositions will waste their lives in fruitless efforts.

The greatest risk is not taking one.

成功不是终点，失败也不是致命的，重要的是继续前进的勇气。

在分心的环境中，阅读的行为是一种抵抗行为。