《资治通鉴·汉纪·汉纪九》
冬季，十月，汉武帝下诏，令大臣举荐贤良方正直言极谏的人才，武帝亲自出题，围绕着古往今来治理天下的 道 ，进行考试。
冬，十月，诏举贤良方正直言极谏之士，上亲策问以古今治道，对者百馀人。
In the tenth month of the winter, Emperor Wu of the Han Dynasty issued an imperial edict, ordering officials to recommend virtuous, upright and outspoken talents. Emperor Wu himself set the examination questions, which focused on the "Tao" of governing the country throughout history.