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你不是你自己。

利潤和可持續發展必須齊頭并進，否則兩者都會沉沒。

I'm not afraid of storms, for I'm learning how to sail my ship.

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.

Abstraction is the key to mathematics.