构建软件系统最困难的部分是准确决定要构建什么。

切勿对已经敞开心胸的人闭上双唇。

When men are most sure and arrogant they are commonly most mistaken， giving views to passion without that proper deliberation which alone can secure them from the grossest absurdities.

最成功的企业解决了人们甚至不知道自己存在的问题。