Language is a process of free creation; its laws and principles are fixed, but the manner in which the principles of generation are used is free and infinitely varied.

心理学的理解来自于观察心灵的行动。

家人团结，才能无往不利。  

劳动分工在尽可能程度上引入，在每一门艺术中都会导致劳动生产力的相应增加。

最好的领导者多听少说——理解先于行动。