《汉书·纪·武帝纪》
建元元年冬十月，诏令丞相、御史、列侯、中二千石、二千石、诸侯相国推举贤良方正直言极谏之人。
建元元年冬十月，诏丞相、御史、列侯、中二千石、二千石、诸侯相举贤良方正直言极谏之士。
In the tenth month of the winter of the first year of Jianyuan, the Emperor issued an edict ordering the Prime Minister, Censors, marquises, Zhongerqianshi, Erqianshi, and the Prime Ministers of the vassal states to recommend virtuous and upright people who could speak frankly and offer strong criticism.