历史不仅仅是事实和日期；它是那些经历过的人的生活。

The essence of education means: one tree shakes another, one cloud pushes another, one soul awakens another.

In mathematics, the simplest explanation is often the most profound.

当你开始为了大众吸引力而妥协的那一刻，就是你完蛋的那一刻。