Democracy... while it lasts is more bloody than either aristocracy or monarchy. Remember, democracy never lasts long. It soon wastes, exhausts, and murders itself. There is never a democracy that did not commit suicide.

永远不要停止学习，因为世界永远不会停止变化。

气候的变化对人生的影响非常大。

如果你在小事上无原则，那么大事上一样没有原则。