《魏书·列传·卷五十一》
高祖因郭祚家是晋、魏名门，从容对宋弁说： 卿理所当然地推举郭祚一门。 
高祖以郭祚晋魏名门，从容谓弁曰： 卿固应推郭祚之门也。 
Because the Guo family of Guo Zuo was the most distinguished family in the Jin and Wei Dynasties, Gaozu said to Song Bian in a relaxed manner, "You must recommend the members of the Guo family."