领导的艺术在于说不，而不是说是。说是很容易的。
Every observation brings us closer to answering fundamental questions about the cosmos.
不只是国家有染的问题，对士而言也有受到熏染的问题。
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.