IOverview
Cheng-Zhu Neo-Confucianism, also called the School of Principle, took shape under the Song dynasty and built a complete picture of heaven, earth and humankind on two ideas, principle (li 理) and vital stuff (qi 氣). Its great synthesiser was Zhu Xi (1130 to 1200). Once his commentaries on the Four Books entered the civil examinations under the Yuan, the school became the longest-lasting orthodoxy in Confucian history.
One point needs stating up front. This is not a church. There is no head, no initiation and no register of believers. It is a scholarly tradition passed on through teachers and students, academies and commentaries.
IIHistory
From the Han to the Tang, Confucianism ran the state but left metaphysics to Buddhism and Daoism. Late in the Tang, Han Yu and Li Ao called for a return to the line of Confucius and Mencius. In the Song, a group of scholars did this systematically. They reread the Book of Changes, the Doctrine of the Mean and the Great Learning to find, inside the Confucian canon itself, answers to the questions Buddhism and Daoism had raised.
- 1017 to 1073Zhou DunyiWrote the Explanation of the Diagram of the Supreme Ultimate and the Tongshu, linking the ultimateless, the supreme ultimate, yin-yang and the five phases to human ethics. Later tradition saw him as the pioneer.
- 1032 to 1107Cheng Hao and Cheng YiThe brothers put principle at the centre. Cheng Yi, the younger, is the direct source of Zhu Xi's system, hence the name Cheng-Zhu.
- 1130 to 1200Zhu Xi's synthesisDrew his predecessors into one system and grouped the Great Learning, the Doctrine of the Mean, the Analects and the Mencius as the Four Books, printed with his commentary in 1190.
- 1196Banned as false learningIn a court power struggle late in his life, Zhu Xi's teaching was proscribed. The ban was lifted a few years after his death.
- 1313Enters the examinationsThe Yuan court decreed the Four Books with Zhu Xi's commentary as the examination texts. Sources give 1313 or about 1314, and the first exam under the new rules was held in 1315.
- 1905End of the Chinese examinationsThe Qing abolished the examination system, closing almost six hundred years of Cheng-Zhu orthodoxy in the exam hall.
IIITeachings and Distinctive Ideas
The core of the school is the pairing of principle and qi. Principle is what makes a thing the thing it is, an invisible pattern. Qi is concrete stuff, sometimes clear, sometimes murky. Nothing has principle without qi, and no qi lacks a principle. Zhu Xi summed it up as principle is one, its manifestations many.
Applied to people, the principle within us is our nature, and that nature is good, as Mencius said. We do wrong because murky qi obscures it. Self-cultivation therefore means clarifying one's qi so that principle can show. The famous phrase preserve heavenly principle, extinguish selfish desire comes from this line of thought.
In Zhu Xi's own account, the path begins with the investigation of things and the extension of knowledge (gewu zhizhi 格物致知), taken from the Great Learning. Probe the principle of each thing and each affair to the end, and in time everything becomes clear at once. Hence wide reading, careful reflection and reverence (jing 敬), a constant seriousness of mind.
A common misunderstanding is that Neo-Confucianism merely restated old Confucian ideas. Its novelty lay in building a metaphysics, something Confucius and Mencius never did. The opposite misunderstanding is that it copied Buddhism. The Song thinkers did borrow concepts and framings close to Buddhist thought, yet they attacked Buddhism sharply for abandoning family and social duty.
IVCultivation, Academies and Examinations
The school has no rites of its own apart from general Confucian ritual. It entered daily life in three places. The first was study. Students read the Four Books with Zhu Xi's notes before moving on to the Five Classics. The second was the academy (shuyuan 書院), private schools founded by scholars where teachers lectured and students debated. Zhu Xi revived the White Deer Grotto Academy in 1179 and wrote its rules. The third was family ritual. The Family Rituals attributed to Zhu Xi became the template for funerals, ancestral offerings and weddings across several countries.
VTransmission and Spread
The school spread along the routes of written Chinese and the examination system, not through missionaries, and it took a different shape in each country.
| Where | How it was received | Key figures |
|---|---|---|
| China | Examination standard from the Yuan until 1905 | Zhu Xi, later the Ming Great Compendia of 1415 |
| Korea | State ideology of Joseon, 1392 to 1910, known as Seongnihak | Yi Hwang (Toegye, 1501 to 1570) and Yi I (Yulgok, 1536 to 1584), and the Four-Seven Debate |
| Japan | Official learning of the Tokugawa shogunate, but without examinations | Fujiwara Seika (1561 to 1619) and Hayashi Razan (1583 to 1657) |
| Vietnam | Standard of schooling and examinations from the early Lê | See In Vietnam |
VIIn Vietnam
Cheng-Zhu learning becomes clearly visible in Vietnam from the late Trần and above all the early Lê. During the Ming occupation of 1407 to 1427, the Great Compendia of the Four Books and Five Classics with Neo-Confucian commentary were brought in. After independence, the Lê made those same books the standard for schools and examinations. According to Wikipedia, Emperor Lê Thánh Tông adopted Neo-Confucianism as the state's foundational values in 1460.
From then until the last examination in 1919, Vietnamese candidates read the Four Books through Zhu Xi. Chu Văn An, who taught at the Imperial Academy under the Trần, is honoured at the Temple of Literature in Hanoi as the master of Vietnamese Confucian learning. Vietnamese family ritual manuals such as Hồ Sĩ Tân's Thọ Mai gia lễ follow the model of Zhu Xi's Family Rituals, adapted to local custom.
No organisation in Vietnam acts in the name of Cheng-Zhu learning today. Its traces lie in family ritual and in how Vietnamese people speak about moral conduct.
VIISymbol of the Branch
Zhou Dunyi's Taijitu
太極圖 周敦頤
VIIISub-branches
- Cheng Yi and Cheng Hao
- Zhu Xi
- Korean Seongnihak
IXOther Branches of Confucianism
XSources
The library cross-checks the sources below. Where they disagree, the page gives both.
?Quick Questions
How is Neo-Confucianism different from New Confucianism?
Neo-Confucianism is the Song School of Principle of the 11th to 13th centuries. New Confucianism is a 20th-century movement in Hong Kong, Taiwan and the diaspora. The similar English names cause frequent confusion.
What does preserve heavenly principle, extinguish selfish desire mean?
It means holding to the pattern of heaven and letting go of desires that stray from it. The Song thinkers did not call for eliminating natural needs such as food. Still, the phrase was later criticised, notably by Dai Zhen in the Qing, as easy to turn against ordinary people.
Why is it called Cheng-Zhu?
Because Cheng Yi and his brother Cheng Hao laid the foundations and Zhu Xi completed the system. The name distinguishes it from the Lu-Wang School of Mind of Lu Jiuyuan and Wang Yangming.
Is Neo-Confucianism a religion?
Not in the sense of having a church. It is a scholarly school without initiation or clergy. It is tied to the rites for Confucius and to family ritual, but those belong to Confucianism as a whole.