《周礼·地官司徒·大司徒》
在各诸侯国和王畿内采邑分配十二种职业，用以成就万民：一是种谷物，二是种瓜果，三是开发山林川泽的材物，四是畜牧业，五是手工业，六是商业，七是纺织业，八是采集业，九是做雇工，十是学习道艺，十一是世代相传的专业，十二是在官府服务。
颁职事十有二于邦国都鄙，使以登万民：一曰稼穑，二曰树蓺，三曰作材，四曰阜蕃，五曰饬材，六曰通财，七曰化材，八曰敛材，九曰生材，十曰学艺，十有一曰世事，十有二曰服事。
Assign twelve occupations in vassal states and fiefdoms within the Wangji to serve the people: first, grow grains; second, grow fruits and vegetables; third, develop timber and other materials in mountains, forests, rivers, and lakes; fourth, raise livestock; fifth, engage in handicrafts; sixth, engage in commerce; seventh, engage in textile weaving; eighth, engage in collecting; ninth, work as a laborer; tenth, study Taoist techniques; eleventh, engage in professions passed down from generation to generation; twelfth, serve in government offices.