有些伤口永远不会愈合，它们只是不再流血。

Quality is free. It's not a gift, but it's free. What costs money are the unquality things -- all the actions that involve not doing jobs right the first time.

Language is not just a system of symbols， but a set of practices with social and cultural significance.

The quality of an organization is never better than the quality of its people.

行为是行为发生时场域的函数。

计划本身毫无价值，但规划的过程至关重要。