Persistence is key in mathematical research; many great results come from looking at the same problem from different angles over and over again.

In every real man a child is hidden that wants to play.

理解另一种文化的唯一方法是假设那种文化的参照框架。

我们若能大笑世事无常，好好活一场，死神也会战栗一旁。

数学中的每个问题都有解答，关键在于找到正确的路径。