书是一份永远不会失去价值的宝藏。

When you have some success， the feeling of being an imposter can be real. Who am I fooling？ But when you create things that only you — with your unique talents and experience — can do， then you are absolutely not an imposter. You are the ordained. It is your duty to work on things that only you can do.

在远处防守不如在近处防守，把守太繁琐不如把守要塞，用常法把守不如用出奇制胜的方法，把守宽阔的地方不如把守狭窄的地方，在深处把守不如在浅处把守。