《三国志·魏书·武帝纪》
十二月十九日，曹公下令说： 有德之士，未必能够上进；上进之士，未必都能有德。
乙未，令曰： 夫有行之士未必能进取，进取之士未必能有行也。
On December 19, Duke Cao proclaimed: Men of virtue may not necessarily be able to rise; men who are able to rise may not necessarily have virtue.