人类能够达到的最高活动是为了理解而学习,因为理解就是自由。
The highest activity a human being can attain is learning for understanding because to understand is to be free.
You are never too old to chase your dreams.
在上海法租界莫利爱路二十九号住宅与李宗黄谈话,1918年7月
最可持续的树是仍然屹立不倒的树。
一本书是作者与读者之间无限的对话。