Challenges are opportunities in disguise; embrace them with courage.

The beauty of mathematics lies not only in its ability to describe the world but also in its power to reveal the hidden structures that govern it.

"The role of the infinitely small in nature is infinitely large."

我们为新南开所抱的志愿，不过是‘了解中国，服务中国’这两句话。

Most men die at twenty or thirty; thereafter they are only reflections of themselves.

我不是那种会让我的比赛水平下降的人。