I think fashion is really important because it's a way of expressing yourself without having to say anything.

The best time to plant a tree was 20 years ago; the second-best time is now.

经济学中最重要的是理解预期的作用。

生活中唯一的限制是你自己设定的。

除非把爱国主义从人类中剔除，否则世界永远不会安宁。