Appreciate everything your associates do for the business. Nothing else can quite substitute for a few well-chosen, well-timed, sincere words of praise. They're absolutely free and worth a fortune.

Exile is not just a matter of geography; it is a state of mind.

系统设计的未来在于将形式化方法与传统工程实践相结合。

The best way to predict the future is to create it.