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.

回顾21岁刚刚毕业时的自己，对于今天42岁的我来说，是一个稍微不太舒服的经历。可以说，我人生的前一部分，一直挣扎在自己的雄心和身边的人对我的期望之间。

学习的每一个方面或智能的任何其他特征都可以原则上被精确描述，以至于可以制造一台机器来模拟它。

The men who learn endurance, are they who call the whole world, brother.

希望是有羽毛的东西，栖息在灵魂中，唱着无词的曲调，永不停歇。

The biggest weapon on the court is your mind.

The market is a mirror of the collective mind.