自然的法则是无情的。

In mathematics, the art of proposing a question must be held of higher value than solving it.

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.

I write to understand as much as to be understood.

每个人心里都有一座围城，外面的人想进去，里面的人想出来。