In language， there is no one-to-one correspondence between words and the things they refer to.

A good mathematician is lazy, but in a constructive way.

数学是一门活生生的学科，随着新的思想和发现不断演变。

唱歌不仅仅是唱准音符；更是用心讲述一个故事。

成功不是幸福的关键。幸福是成功的关键。如果你热爱你所做的事情，你就会成功。