The function of entrepreneurs is to reform or revolutionize the pattern of production by exploiting an invention or, more generally, an untried technological possibility for producing a new commodity or producing an old one in a new way.

The truth is rarely pure and never simple.

The strength of a habit is a function of the number of times it has been reinforced.

You are as big as the things that make you angry.

我认为忘记一个人的最好方法就是和另一个人在一起。

"He who has a why to live can bear almost any how."

安全不是优先事项，而是价值观。优先事项会变，价值观不会。