A person who is too nice an observer of the business of the crowd, like one who is too curious in observing the labor of bees, will often be stung for his curiosity.

The only thing necessary for the triumph of evil is for good men to do nothing.

Quality is not a coincidence; it is a consequence.

心灵是自己的地方，它本身可以把地狱变成天堂，把天堂变成地狱。

在家不会接待客人，出去后才知道这个问题的重要性。

正确的激励可以将冲突转化为合作。