The present state of the system of nature is evidently a consequence of what it was in the preceding moment, and if we conceive of an intelligence which at a given instant comprehends all the relations of the entities of this universe, it could state the respective positions, motions, and general effects of all these entities at any time in the past or future.

Literature is the most subversive weapon because it changes minds, not by force, but by persuasion.

快乐不在于占有这个人。快乐在于此。房间里有了另一个竞争者。

容易愤怒就会伤害别人；私欲太多了就会害了自己；贪图安逸就会有害于自己的品德；忧虑太多，就会削弱自己的意志。