可持续性不仅仅是关于环境，它还关乎人。

From the deepest desires often come the deadliest hate.

The most important thing is to keep your mind active.

Leadership means making tough decisions today that will ease tomorrow's challenges.

写作是一种抵抗的方式，是保持记忆鲜活的方式。

在一个不精确的世界中，模糊集的概念提供了一种自然的方式来处理那些不精确性源于缺乏明确定义的类别成员标准的问题。

I am the wisest man alive, for I know one thing, and that is that I know nothing.

我们看到自己想看到的，相信自己想相信的。