I think it would be a disaster. The extraterrestrials would probably be far in advance of us. The history of advanced races meeting more primitive people on this planet is not very happy, and they were the same species. I think we should keep our heads low.

诗歌是一面镜子，使扭曲的事物变得美丽。

Never let fear stop you from pursuing your dreams.

物理学的美丽在于它能够用如此简单而优雅的数学来描述宇宙。

The more we know, the more we realize how little we know.

最好的故事是那些让你感觉活着的故事。