Though debts are condemned in the financial world, the world of friendship and love may perversely depend on well-managed debts.

有时候你必须迷失自己才能找到自己。

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.

A prophet is not without honor except in his own country and in his own house