抬起头来，上帝把最艰难的战斗交给他最坚强的战士。
Keep your head up, God gives his hardest battles to his strongest soldiers.
"To create is to defy the inevitable."
Be prepared: When you are 90% done any large project (a house， a film， an event， an app) the rest of the myriad details will take a second 90% to complete.
The Lisp language is designed to be extensible, and it is easy to add new features to it.
严于律己，宽以待人。反过来对谁都是灾难。