Sustainable infrastructure should balance economic, social and environmental benefits.

We don't even know how strong we are until we are forced to bring that hidden strength forward. In times of tragedy, of war, of necessity, people do amazing things. The human capacity for survival and renewal is awesome.

Happiness is not something ready-made. It comes from your own actions.

也许如果我们从小就开始编写程序，作为成年人，我们将能够阅读它们。

一本书是一扇门，每个读者都以不同的方式穿过它。