我认为最重要的是始终保持谦逊并继续努力工作。

The cowards never started, and the weak died along the way. That leaves us to continue our journey.

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.

译文：山间的溪水容易上涨和退却，小人的心思容易反反复复。赏析：君子胸怀坦荡，光明磊落，真诚待人，和君子相处，如沐春风，让人心旷神怡。而小人心胸狭窄，鸡肠鼠肚，睚眦必报，和小人交往，无异于和豺狼同行。

学习理论中的一个关键见解是，假设类的复杂性对于泛化至关重要。