"The best way to innovate is to start with the customer."

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.

DNA的双螺旋结构是所有科学中最美丽和优雅的结构之一。

保持专注，专注于你的目标。