天下的治乱不在于一个王朝的兴亡，而在于百姓的忧乐

人生最好的老师就是经历。

Your time is limited, don’t waste it living someone else’s life.

In a world filled with hate, we must still dare to hope. In a world filled with anger, we must still dare to comfort. In a world filled with despair, we must still dare to dream. And in a world filled with distrust, we must still dare to believe.

被称为"人群"的生物的智商是其人数的平方根。