幸福不是现成的东西，它来自于你自己的行动。

The writer must be a person who is willing to be alone.

The design of a system should be guided by the principle of least surprise, where the behavior of components is intuitive and predictable.

富贵如住宿旅店，只有谨慎勤劳才可以久居；贫贱如破衣服，只有勤俭才能脱去贫穷的破衣。