Shang Yang
Also known as Gongsun Yang 公孙鞅 · Wei Yang 卫鞅 · Lord Shang 商君
- Dates
- c. 390–338 BC
- Era
- Warring States, born in Wei, career in Qin
- Role
- Reformer of Qin under Duke Xiao, traditional source of Legalist law
Qin became the state that could swallow the others after a foreign adviser tied rank to grain and battlefield results, not to birth.
Who was Shang Yang?
Shang Yang was Gongsun Yang, a noble's son from the state of Wei 卫, not a son of Qin. He failed to get his reforms adopted at home in a larger Wei 魏, then entered Qin as Duke Xiao looked for a way to strengthen a border state. From 356 BC he rebuilt Qin's law. Rank was to follow agriculture and war. Households were grouped so neighbours answered for one another's crimes. Hereditary privilege lost its automatic hold on office. A second wave of reform, about 350 BC, moved the capital towards Xianyang and tightened the counties. The Shiji is the main narrative of how he did it.
Duke Xiao protected him. The crown prince broke the law, and Shang Yang punished the prince's tutors because the heir himself could not be mutilated. When Duke Xiao died in 338 BC, that prince became King Huiwen. Shang Yang fled. The Shiji adds a bitter scene: an inn refused him a room, because his own law forbade lodging a stranger without papers. He was caught and killed. The Shiji says he was torn apart by chariots, and his family destroyed. The state he built did not die with him. Han Fei later took Shang Yang's 法 as one of three pillars. The book under Shang Yang's name is a school text, not a signed diary.
Key works
The Book of Lord Shang 商君书
Traditionally attributed to Shang Yang, and transmitted as a Legalist compilation in his name. Parts match the Qin reforms, and authorship belongs to the school rather than to a stack of signed memos.
Key ideas
农战
Agriculture and war
农战 (nóng zhàn) is the pair the state should honour. Grain and military results earn rank, and trade, debate, and hereditary idleness are treated as drains on the state's strength.
徙木立信
Move the pole, establish trust
The Shiji's pole story is a lesson in credibility. A published reward is worthless until the state pays it once, in public, for a trivial act, and after that, harsher orders are believed.
连坐
Mutual responsibility
Households were tied in groups of five and ten, so that a neighbour who concealed a crime shared it. The aim was information, and the cost was collective fear, which Han Fei later admired as machinery.
Famous episodes
The pole at the gate
Historyc. 356 BC
According to the Shiji, Shang Yang set a pole at the south gate and offered gold to anyone who would carry it to the north gate. Nobody believed him until he raised the reward, a man moved the pole, and the gold was paid at once. The point was to make the new law look serious before the punishments began.
The reforms under Duke Xiao
HistoryFrom 356 BC
Over two decades Shang Yang replaced aristocratic licence with ranks earned by grain and war, grouped the population for mutual surveillance, and pushed Qin towards a county administration centred on Xianyang. Resistance inside Qin was real. The Shiji says the people came to find the new rules workable once the rewards proved genuine. This is the programme later Legalists pointed back to.
Torn apart by chariots
History338 BC
Duke Xiao died in 338 BC, and the new king had old scores, transmitted through the tutors Shang Yang had punished. Shang Yang fled, was refused a room under his own lodging law, and was killed. The Shiji says the sentence was death by chariots, 车裂, and that the reforms outlived the reformer.
Myths vs facts
Shang Yang invented Legalism whole, and Han Fei only copied him.
He is the classic source of 法, published law tied to agriculture and war. Han Fei says so, then adds 术 from Shen Buhai and 势 from Shen Dao. The synthesis is Han Fei's, and the Qin machinery starts earlier.
He was a Qin aristocrat reforming his own ancestral state.
He was Gongsun Yang of Wei 卫. Qin enfeoffed him at Shang after the reforms worked, which is why he is called Shang Yang and Lord Shang. The king who killed him remembered him as an outsider with too much power.
The Book of Lord Shang is his private journal of the reforms.
It is traditionally attributed to him and was transmitted as a Legalist book in his name. Chapters disagree in date and voice. It stands as the school's statement of the reform, with the Shiji as the narrative of his life.
Takeaways
- Pay the published reward the first time, in public.
- Tie rank to results the state can count.
- Expect the law you write to bind your own retreat.
Rivals and connections
Sources
- Sima Qian, Shiji 史记, ch. 68
- Book of Lord Shang 商君书 (traditionally attributed)