《汉书·传·佞幸传》
所以孔子说 有三种朋友损害人 ，身为天子之尊的皇帝、国君不能凭个人感情授人以官，原因大概也就是这个了。
故仲尼著 损者三友 ，王者不私人以官，殆为此也。
Therefore, Confucius said, "There are three kinds of friends who harm a person." Perhaps this is the reason why the emperor, who is the most respected person in the country, cannot appoint officials based on his personal feelings.