Doctrine of the Mean (Zhongyong 中庸)

One of the Four Books of classical Chinese philosophy, and the text zhu-xi canonized when he assembled that set. It began as a chapter of the Classic of Rites (Liji), one of the Five Classics, and was pulled out and elevated by the Song Neo-Confucians — so the spoke's Neo-Confucian corner now has one of its primary objects paged, rather than only the Song–Ming dispute about it.

The phrase comes from Analects 6:29, where confucius names the virtue and says almost nothing about it: "The virtue embodied in the doctrine of the Mean is of the highest order. But it has long been rare among people" (Burton Watson tr.). The Zhongyong is the text that fills that silence in.

Two characters, and why the English title is contested

Zhong is "bent neither one way nor another"; yong is unchanging constancy. Not a compromise between two positions, then, but centrality held steady — which is why nearly every translator has reached for a different English phrase:

Andrew Plaks argues the translation problem is the opposite of the usual one: the text is "too easy," and that is the "major impediment" (Joshua Fogel's paraphrase in his Journal of Asian Studies review). Plain sentences carrying doctrine are harder to move between languages than technical ones.

Authorship is contested

Traditionally zisi, Confucius's grandson. Cui Shu (1740–1816) questioned it first, in the Qing; some modern scholars read parts as written or edited by Confucians across the Qin–Han transition, and others still attribute it to Confucius himself. The Wikipedia article records the dispute as unsettled while noting that all sides agree the text carries the ethical core of Confucian teaching.

Structure and the three guidelines

The text divides in three — Confucian metaphysics ("the Axis"), politics ("the Process"), and ethics ("the Perfect Word / Sincerity"), following Pound's 1951 arrangement. Three guidelines mark the junzi, the respectable person:

Self-watchfulness. "The respectable person does not wait till he sees things to be cautious, nor till he hears things to be apprehensive. There is nothing more visible than what is secret, and nothing more manifest than what is minute. Therefore the superior person is watchful over himself, when he is alone" (ch. 1). Cultivation is audited by nobody, so it must be self-audited.

Leniency. "What you do not like when done to yourself, do not do to others" (ch. 13), worked out through four asymmetric relations: serve my father as I would require my son to serve me, my prince as I would require my minister, my elder brother as I would require my younger, my friend as I would require him. Reciprocity here runs along a hierarchy, not between equals.

Sincerity (cheng). The metaphysical claim, and the strangest passage to a Western eye (ch. 23): complete sincerity develops one's own nature fully, then other people's, then the nature of animals and things, and then "he can assist the transforming and nourishing powers of Heaven and Earth" and "with Heaven and Earth form a ternion." Self-cultivation does not merely track the cosmic order; at its limit it participates in it.

The mean that a state could examine

Before the twentieth century the Zhongyong was compulsory schooling across China and required study for imperial civil-service employment, held to reinforce the three bonds — parent/child, husband/wife, ruler/subject — and with them a quiet household and an orderly state. That is the same mechanism neo-confucianism records for zhu-xi's doctrine of li: a metaphysics adopted as an examinable syllabus, and this page is the text sitting on the exam. New Confucians have returned to it for exactly that reason — its foothold in the education system never fully went away.

Modern verdicts, which do not agree

• Sun Yat-sen criticized it.
• Chiang Kai-shek praised it as the book that introduced him to learning and as the essence of ancient Chinese thought.
• Mao Zedong said both things. Commenting on Ai Siqi, he read it as an eclecticism that opposes both the abolition of exploitation and excessive exploitation, fails to see that some things deserve absolute negation, and blocks progress by holding contradictions open past the point of resolution — against dialectics. Elsewhere he cited it approvingly: "Being excessive is too left-leaning and being deficient means too right-leaning. We need to find an optimal status, which is what the Doctrine of the Mean suggests," calling it "a great discovery of Confucius."
• Lu Xun blamed it for a national habit of compromise: people will not let you add a window to a dark room until you threaten to take off the roof, and then they agree to the window. "Without a radical proposal pushing them, Chinese won't permit even the mildest reform."

The four together are the argument about whether a doctrine of balance is wisdom or a brake, and the text has been read as each by people who needed it to be.

The comparison to make carefully

Wikipedia disambiguates this text from Aristotle's doctrine of the mean at the top of the article, and lists the golden mean under "see also." The resemblance is real: both make virtue a matter of avoiding excess and deficiency, and aristotle is the corpus's other exponent of a mean.

They are not the same doctrine, and this spoke's standing rule is to say what does not carry across. Aristotle's mean is relative to the agent and sits between two named vices, located by phronesis in the particular case; there is no cosmology behind it. Zhongyong is centrality and constancy grounded in Heaven, and it terminates in cheng — a sincerity that assists the transforming powers of Heaven and Earth. One is a practical calibration; the other is participation in a moral cosmos. That Heaven-facing terminus is what makes the shared word "mean" a false friend, and it is the same shape of trap neo-confucianism records for li against Western universals: the Chinese term obliges where the Greek one measures. (The comparison is this wiki's; the article states only that the two doctrines are distinct.)

What this source is, and is not

A T2 tertiary reference. It is good on titles, dates, quoted passages and reception, and thin where the philosophy is: it never sets out cheng as a doctrine beyond the one quoted chapter, its "Modern views" section is flagged by Wikipedia itself as needing expansion, and it offers no reading of the metaphysics in part one. The Legge translation is public domain and is the obvious T1 to page next; SEP has no dedicated Zhongyong entry.

One loose thread recorded for later: the Tsinghua bamboo slips contain a text, Bao xun (保訓), sharing the topos of centrality with the Zhongyong — an excavated-manuscript angle on the text's prehistory that nothing in this corpus can yet follow up.

Related

neo-confucianism · zhu-xi · confucius · zisi · wang-yangming · aristotle · stoicism