Never forget what you are, for surely the world will not. Make it your strength. Then it can never be your weakness. Armor yourself in it, and it will never be used to hurt you.

Leadership means making tough decisions today that will benefit future generations.

成功来自于知道你已尽力成为你能成为的最好的人。

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

The best players have the shortest memories.

给一个人火，他能温暖一天；但把他点燃，他能温暖余生。