《太平广记·卷二百六十·嗤鄙三》
到常兖任宰相时，虽然他不受贿赂，但是他孤僻而独断专行。由于他不能分别好坏，所以在提拔选用人材上多有失误。
及常兖为相，虽贿赂不行，而介僻自专，失于分别，故升陟多失。
When Chang Gun became the prime minister, although he did not accept bribes, he was isolated and arbitrary. Because he could not tell right from wrong, he made numerous mistakes in selecting and promoting talented people.