持续练习的小而刻意的行动可以带来幸福水平的巨大变化。

The purpose of mental activity is successful living.

The only thing that can make you a success is your hard work.

Simple can be harder than complex: You have to work hard to get your thinking clean to make it simple.

怪物是真的，鬼魂也是真的。它们住在我们心里，有时还会赢。