《资治通鉴·魏纪·魏纪七》
有人问卢钦： 徐公在武帝时，人们认为他很通达；自从当了凉州刺史，又回到京师后，人们则认为他孤傲，这是为什么？ 
或问钦： 徐公当武帝之时，人以为通；自为凉州刺史，及还京师，人以为介，何也？ 
Someone asked Lu Qin: Xu was considered to be satisfactory when he served the Emperor Wu, but since he became the governor of Liangzhou, and went back to the imperial court, people thought he was arrogant, why is that?