Silhak

The claim

Learning must be useful. Land tenure, taxation, agriculture, technology and administration are proper subjects for a scholar, and abstract metaphysical dispute is a dereliction while the countryside is in distress.

What it held

Silhak arose after the Japanese and Manchu invasions had devastated Korea and the ruling scholar class was still conducting the Four-Seven debate. The Silhak scholars did not deny the philosophy; they argued that the priorities were indefensible.

The programme is concrete. Yu Hyeongwon proposed land redistribution. Pak Jiwon travelled to China and came back arguing that Korea should adopt anything useful he had seen, including from the Manchus his class despised. Hong Daeyong argued that the earth rotates and that China is not the centre of the world — a claim with political as well as astronomical content.

Jeong Yakyong is the culmination. He wrote on administration, law, medicine, engineering and agriculture, designed a crane used to build a fortress, and produced a reinterpretation of Confucian ethics grounded in practice rather than in metaphysics. He wrote most of it during eighteen years of exile, imposed partly because of his family's association with Catholicism.

The movement had little effect on policy at the time. It was recovered in the twentieth century as evidence of an indigenous Korean modernity, which has coloured how it is read.

How it argued

Empirical investigation, comparative observation of China and the West, and detailed policy proposal.

What it was arguing against

The Neo-Confucian establishment's preoccupation with metaphysical dispute, and the factionalism that made office depend on doctrinal alignment.

Where it disagreed with itself

Whether Silhak was a coherent school or a label applied retrospectively to unconnected reformers — the latter view is now common among historians.

Common misconceptions

That it rejected Confucianism. Jeong Yakyong's programme is a return to what he took to be the original practical intent of the classics, against the metaphysical overlay.

How it began

Two devastating invasions, a rigid examination system, and a class of scholars excluded from office by faction who had time to think about why the country was failing.

What became of it

Ended without implementation. Recovered in the twentieth century as a nationalist resource, which is why the label exists at all.

Lasting influence

Korean self-understanding, and the modern claim to an indigenous reformist tradition. Jeong Yakyong is a national figure.

Why it still matters

The argument about what scholars owe a society in distress is not a period question.

Put another way

A scholar measuring a field rather than annotating a text about fields.

Where to start

The Jehol Diary. It is a travel book and the argument arrives through observation.

The surprising bit

Jeong Yakyong wrote around five hundred volumes, most of them during eighteen years of exile, including a design for a pulley crane that was actually used to build the Hwaseong fortress.

In their own words

Connections

Answers

Cheng-Zhu School

Opposed by

Cheng-Zhu School, Korean Toegye School

Parallel to

Evidential Learning (Kaozheng)

The verdict

A reform programme that changed nothing at the time and became a nation's evidence that it could have modernised itself.

Sources

• Stanford Encyclopedia of Philosophy