古代的毛嫱、西施，虽然她们是天下的美人，但在满面怒容的时候，人家是看不出她们的美貌来的。鲁迅曾说“世间最可厌恶的事莫如一张生气的脸；世间最下流的事莫如把生气的脸摆给旁人看，这比打骂更难受”，开心的时候，几乎每个人都是慈眉善目，但最能显露一个人修养的，却是他生气的时候，即使盛怒，也不摆脸色给别人看，这是最佳的人品。
Lisp is worth learning for the profound enlightenment experience you will have when you finally get it; that experience will make you a better programmer for the rest of your days, even if you never actually use Lisp itself a lot.
Sometimes we get sad about things and we don’t like to tell other people that we are sad about them.
有时我们会为某些事情感到悲伤，而我们不愿意告诉别人我们为此感到悲伤。
In quantum computing, we are not just solving problems faster, we are solving problems that were previously thought to be unsolvable.