When I look at the world I'm pessimistic, but when I look at people I am optimistic.

We must balance economic growth with environmental responsibility.

物理学中的每一个发现都打开了一扇通往新奥秘的门。

The search for meaning is a futile endeavor.

介导我们触觉的分子是我们日常体验的无名英雄。

我们都是携带过去碎片的时间胶囊。