能源安全就是国家安全。

有一个人从天堂来到人间旅游，他所使用的是有效三十天的减价票，他试图要把他的回程票卖掉。

The most important thing in the programming language is the name. A language will not succeed without a good name. I have recently invented a very good name and now I am looking for a suitable language.

The best books are the ones that challenge you.

创造力需要放下确定性的勇气。