You have to believe in yourself when no one else does.

If I fail, I try again, and again, and again. If YOU fail, are you going to try again? The human spirit can handle much worse than we realize. It matters HOW you are going to FINISH. Are you going to finish strong?

追求数学知识是一场永无止境的冒险。

【释义】天旱时准备船只，洪水时准备车辆，这是事物发展的规律。

过去从未死去，它甚至还未过去。

The big money is not in the buying and the selling，but in the waiting.