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. In a world filled with distrust, we must still dare to believe.

Every mathematical problem is a window into a new world of understanding.

我们不是按照事物的本来面目看待它们，而是按照我们自己的样子看待它们。

我不后悔我的过去，我只是后悔在错误的人身上浪费时间。

创新是经济繁荣的核心问题。