如果你输不起，你也赢不起。

实现明天的唯一限制是我们今天的疑虑。

The purpose of life is not to be happy. It is to be useful, to be honorable, to be compassionate, to have it make some difference that you have lived and lived well.

A man's real possession is his memory. In nothing else is he rich, in nothing else is he poor.

最简单的事情可以是最深刻的。