《资治通鉴·唐纪·唐纪四十二》
关播回答说： 下诏寻求和使者荐举，只能得到一些凭着文词追求仕禄的人物罢了，有道贤人哪里会随着一纸公文而被推举、先拔出来呢！ 
对曰： 下诏所求及使者所荐，惟得文词干进之士耳，安有有道贤人肯随牒举选乎！ 
Guan Bo replied: "An imperial edict to seek them and recommendations from envoys will only attract those who use their fine writing to pursue official posts. Worthy and virtuous men are not going to suddenly be recommended or come forward thanks to a document!"