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.

The world has nothing to fear from military ambition in our Government.

——临终时对孔祥熙说，1925年3月

最大的风险是不冒任何风险。在一个快速变化的世界里，唯一注定失败的策略就是不冒险。

用扭曲的人性之材，造不出完全笔直的东西。