确保和平的最佳方式是维持主要国家之间的权力平衡。

"The past is never truly gone; it lives on in the choices we make today."

There are no shortcuts in life, only down-to-earth efforts.

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.