《资治通鉴·唐纪·唐纪二十八》
宋向玄宗上奏道，陛下对亲朋故旧所能给予的私情和恩惠，有一些基本的规矩，授官的资历，也不是没有一些公正的准则。
宋璟奏： 故旧恩私，则有大例，除官资历，非无公道。
Song said to Emperor Xuangzong, “The private feelings and favors that Your Majesty can give to his relatives and old friends have some basic rules, and the qualifications for conferring an office are not completely devoid of some fair principles.