《资治通鉴·晋纪·晋纪二十三》
桓温说： 谢玄年庙四十必定会拥旗执节，王当成为少壮而居高位的黑头公，全都是不可多得的人才。 
曰： 谢掾年四十必拥旄杖节，王掾当作黑头公，皆未易才也。 
Huan Wen said: Xie Xuan, at the age of forty, will definitely hold the flag and lead the way. Wang will become a young and high-ranking black-haired duke. They are all rare talents. 