如果你每天都履行自己的义务，你就不必担心未来。
If you fulfill your obligations everyday you don't need to worry about the future.
The most dangerous phrase in business is 'we've always done it this way.'
There is no greater sorrow than to recall happiness in times of misery.
——2004年在南京航空学院上的演讲
The ratio of positive to negative emotions that predicts flourishing is about 3 to 1. Above that ratio, people tend to flourish; below it, they tend to languish.
I think it's important to have a positive attitude and to be optimistic.
最成功的城市空间是那些促进人类互动和联系的空间。
在DNA的长河中，我们都是时间旅行者。