Peter PrincipleyoudaoicibaDictYouDict[Peter Principle 词源字典]
1968, "in a hierarchy, every employee tends to rise to his level of incompetence," named for (and by) Laurence Johnston Peter (1919-1990) Canadian-born U.S. educationalist and author, who described it in his book of the same name (1969).[Peter Principle etymology, Peter Principle origin, 英语词源]