著书不为考据所误，其中包含着风雷般的老将之心。
When a person realizes he has been deeply heard, his eyes moisten. I think in some real sense he is weeping for joy. It is as though he were saying, "Thank God, somebody heard me. Someone knows what it's like to be me."
唯一能让你快乐的是你自己的心。
The best mathematics is that which you do not understand at first glance.
Freedom without justice is tyranny.