书籍是理解自己和别人的钥匙。

——从浙江观潮返上海后题词，1916年9月15日

I have often been asked how my plays come about. I cannot say. Nor can I ever sum up my plays, except to say that this is what happened. That is what they said. That is what they did.

Dairy farming is both an art and a science—respect both.

学习一门新编程语言的最好方法是用它写程序。

The difference between ordinary and extraordinary is that little extra.