《资治通鉴·汉纪·汉纪二十二》
王凤一向器重杜钦，因此把他安置在幕府作官，国家的政治大计，常与他一起研究考虑。杜钦多次称赞推荐有名望的士人，使他们补救改正政治上的欠缺和失误。当世的善政，多出于杜钦的建议和筹划。
凤素重钦，故置之莫府，国家政谋常与钦虑之，数称达名士，裨正阙失；当世善政多出于钦者。
Wang Feng had always held Du Qin in high regard, and consequently granted him a position as an official in the military headquarters, frequently studying and considering major political strategies with him. Du Qin frequently praised and recommended virtuous scholars, enabling them to rectify and correct political deficiencies and mistakes. Most of the virtuous governance of the time was based on Du Qin's suggestions and plans.