人外有人

But there are also people who are even cleverer.

但是人外有人，天外有天。

Is really that there is day outside the day, someone outside the person, I just know originally a teacher to also can be so.

真是天外有天，人外有人，我才知道原来老师也是可以这么当的。

It is lucky that I come here and find there are skies beyond our skies and there are people excellent than ours.

还好我今天来到你这里，发现天外有天，人外有人；

We should learn to be modest and understand the truth that there is always someone who is better than us.

我们应该学会谦虚，懂得天外有天，人外有人的这个道理。

The first deep space flights reveal numerous planets capable of supporting life.

首次深度空间飞行,众人方知天外有天,人外有人.

What is less well known, except perhaps to the American Studies majors,

或许，除了美国研究专业的人外，很少有人知道，