无论头上是怎样的天空,我准备承受任何风暴。
The problem of quality management is not what people don't know about it. The problem is what they think they do know.
Fortune favors the prepared mind.
出自汉·桓宽《盐铁论·复古》。岩雀并不知道天的高远,废井中的青蛙也不会知道江海的博大。这句话是形容心胸狭窄之人见识短浅。