【释义】狡猾的兔子有三个洞穴，才能避免死亡。如今您只有一个洞穴，还不能高枕无忧。请让我为您再开凿两个洞穴。

The most important single aspect of software development is to be clear about what you are trying to build.

要发出紧急信号，使用“重要的事情说三遍”的“三”法则；三次呼喊、三声喇叭或三声哨声。