The only way to be happy is to love what you do.
快乐的唯一方法是热爱你所做的事情。
The joy of discovery in mathematics is like solving a puzzle that the universe has left for us.
每一次突破都始于一个问题,而每一个问题都是迈向未知的一步。
著书不为考据所误,其中包含着风雷般的老将之心。