可持续发展的关键是平衡经济增长和环境保护。

——2004年在南京航空学院上的演讲

It is better to be a human being dissatisfied than a pig satisfied； better to be Socrates dissatisfied than a fool satisfied.

The true investor scarcely ever is forced to sell his shares, and at all other times he is free to disregard the current price quotation.

可持续性不仅仅是一种趋势，而是负责任商业的基础。