It is a common experience that a problem difficult at night is resolved in the morning after the committee of sleep has worked on it.
有人问我什么是幸福,我回答说:不奢求非必需之物。
永远不要低估小而持续的改进的力量。
I want my books sold on airport bookstalls.
The only way to be truly satisfied is to do what you believe is great work.