相关性和因果关系之间的区别不仅仅是学术上的——它可能具有深远的政策影响。

The world is full of stories, but the stories are all one.

The highest goal of art is to create harmony between man and his environment.

Fear is a habit. I am not afraid.

可持续性不是一个流行词，而是我们对后代的责任。