The pursuit of mathematical truth is a pursuit of beauty, elegance, and simplicity.
一个人独处要超脱,与别人共处要和蔼;没有事时享受闲适;有了事情要果断;得意时要显出淡泊,失意时要安然处之。
The only reason people want to be masters of the future is to change the past.
Every tree planted today is a legacy for generations we will never meet.