Every problem in mathematics is an opportunity to learn something new.

电影是一种时间的艺术，它让我们在有限的时间里体验无限的情感。

The only thing I can rely on is my own uncertainty.

The nose of a mob is its imagination. By this, at any time, it can be quietly led.

最激动人心的发现往往来自于以全新的方式看待老问题。