《汉书·传·赵尹韩张两王传》
郡国的二千石官吏以优异政绩入京试任，等到转为正职后，长的不过二三年，短的几个月或一年，就会被毁伤名声，因罪过罢免。
郡国二千石以高弟入守，及为真，久者不过二三年，近者数月一岁，辄毁伤失名，以罪过罢。
The 2,000-stone officials of the commanderies and kingdoms entered the capital to take up their posts after having demonstrated outstanding administrative achievements. However, after transforming into their official roles, most of these people found themselves faced with impeachment and charges after only two or three years – some even found themselves out within a few months.