The best buildings are those that invite participation.
漂亮的女人休要让她老去,风流浪的子不要让他贫困。
大海是一个既危险又美丽的地方,提醒我们生命的脆弱。
任正非内部讲话稿
我们都在阴沟里,但仍有人仰望星空。
A problem is in P if it can be solved quickly by a computer, and in NP if a solution can be verified quickly.