For me, the middle level is plenty high.

对我来说，中等水平已经足够高了。

And then you have your different middle level managers and whatnot.

然后你有不同的中层经理等等。

You can think of culture as having three levels: first, the top level is the outward manifestations, the artifacts: visible behavior, art, clothing and so on; second, in the middle level are the values.

第一，顶层是外在的表现，即器物：可见的行为、艺术、服饰等等；第二，中层是价值观。