成功不是终点，失败也非致命，继续前进的勇气才是关键。

The thought of death should usher us towards whatever happens to matter most to us; it should lend us the courage to pursue the way of life we value in our hearts.

数学中的每个问题都是一个等待解决的谜题，而乐趣就在于解决的过程。

Change your focus, change your life.

我们讲述的故事塑造了我们生活的世界。