An In-depth Interpretation of Mencius' 'The Trees of Ox Mountain' Chapter: The Core of Innate Goodness and Cultivation of Mind and Nature

Chapter 2: "Because it was near the suburb of a great capital, it was cut down with axes and adzes. Could it remain beautiful$25" — The Doctrine of External Harm

Section 2.1 "Near the Suburb of a Great Capital": Environmental Influence on Nature

The phrase "Because it was near the suburb of a great capital" (Yi qi jiao yu da guo ye) pinpoints the external cause of the wood’s destruction—its location near the capital of a great state. This single phrase contains profoundly deep thought: the harm of the environment upon innate nature.

What constitutes a "great capital" (da guo)$26 In the pre-Qin context, "great capital" referred not only to large territory and population but also to the immense consumption and burgeoning desires. The Zuo Zhuan (1st year of Duke Yin) recounts the matter of Duke Zhuang of Zheng: "A great city comprised no more than one-third of the outer wards, one-fifth of the middle wards, and one-ninth of the inner wards," showing the massive scale of capital cities. Great cities required vast amounts of timber for constructing palaces, manufacturing implements, and supplying fuel.

The Book of Songs, Major Odes (Daya, Ling Tai), describes King Wen building the Spirit Terrace: "We marked out the Spirit Terrace, we marked it and erected it. The common people attacked it, and in a short time it was finished." Although it claims King Wen’s terrace did not burden the people, building a terrace necessarily requires timber, and using timber requires felling trees—this logic is unavoidable.

The chapter named Zicai (Timber for Carving) from the Guanzi is related to "timber": "Zicai" means wood material for carpentry. This chapter uses timber to illustrate the governance of the people, stating: "A plan for one year is not as good as planting grain; a ten-year plan is not as good as planting trees; a lifelong plan is not as good as cultivating people. A single harvest comes from planting grain; ten harvests from planting trees; a hundred harvests from cultivating people." This equates "cultivating people" with "planting trees," which corresponds to Mencius's logic of using mountain wood to symbolize the human heart.

Why does "great capital" signify misfortune$27 Because the "great capital" represents the height of civilization, and the height of civilization represents the greatest consumption of nature. Here lies a profound paradox: the more developed human civilization becomes, the more severe the harm inflicted upon nature (including human nature).

This idea bears striking similarity to Laozi’s view. Laozi, Chapter 80, states:

"Let the state be small and the people few. Let there be implements of war many but unused. Let the people treat their light weapons as heavy, and fear death, so they will not move far away. Though they have boats and carts, they will have no occasion to use them. Though they have armor and weapons, they will not deploy them. Let the people return to the use of knotted cords. Let them be content with their food, pleased with their clothing, comfortable in their dwellings, and fond of their customs. Neighboring states can see each other, and the sound of chickens and dogs can be heard between them, but the people will not travel to and fro until they are old and dead."

Laozi yearns for a "small state with few people" precisely because he saw how the "great capital" erodes natural human disposition. In a great state, artifacts abound, desires proliferate, and the simple, original nature of man is gradually lost amidst this profusion of things and desires. This shares a deep logical resonance with Mencius’s analogy of Ox Mountain being "near the suburb of a great capital"—although Mencius and Laozi differ in their philosophical stances (Mencius advocates active moral cultivation, Laozi advocates returning to natural simplicity), both recognized the external environment’s harm to innate human nature.

The Zhuangzi, Chapter on "Horse’s Hooves" (Mati), pushes this discourse to its extreme:

"Horses are suited for treading frost and snow; their hair can ward off wind and cold. Grazing on grass and drinking water, lifting their feet to walk—this is the true nature (zhen xing) of the horse. Even if there were raised platforms and palatial chambers, they would be of no use. Then came Boyao, saying, 'I am good at managing horses.' He singed them, scraped them, carved them, branded them, tied them with reins, and confined them in stalls. Twelve or thirteen out of every ten horses died. He starved them, thirsted them, made them gallop and prance, controlled them and kept them in formation. They faced the danger of the yoke ornament in front and suffered the threat of the whip behind, and more than half the horses had already died."

Zhuangzi uses Boyao’s management of horses as an analogy to discuss how artificial "governance" (civilizational intervention) harms the horse’s "true nature." The horse’s true nature is to "graze grass and drink water, lift its feet to walk," but Boyao’s "governance" caused more than half the horses to die. This is consistent in approach with Mencius using the axe and adze felling wood as an analogy for how the external environment harms the human conscience.

However, we must note a fundamental difference between Mencius and Zhuangzi. Zhuangzi believed that all artificial civilization (including benevolence, righteousness, propriety, and wisdom) harms human true nature; Mencius believed that benevolence, righteousness, propriety, and wisdom are human true nature, and what the external environment harms is not "natural" human nature, but "moral" human nature. This distinction is crucial and will be discussed later.

Section 2.2 "Cut down with axes and adzes": The Manner and Intensity of Harm

The four characters "cut down with axes and adzes" (fu jin fa zhi) describe a violent, direct, and artificial mode of destruction.

"Fu" refers to a large axe; "Jin" refers to a small axe. The Shuowen Jiezi states: "Axe (fu) is for chopping. Adze (jin) is for chopping wood, an axe." Fujian refers to the tools used for felling wood. Felling with axes and adzes is a conscious, purposeful act—people are not unintentionally trampling seedlings, but intentionally using tools to cut.

Why emphasize "axes and adzes" rather than other methods of destruction (like burning, flooding, or wind)$28 Because "axes and adzes" represent intentional, human-wrought destruction, not natural disaster. The felling of mountain wood was not caused by natural calamity, but by human action. Likewise, the loss of the human conscience is not because the nature inherently lacks goodness, but because of subsequent human conditioning.

This point echoes strongly in pre-Qin thought. The Book of Documents (Taishi): "When Heaven sends down calamity, one can still escape it; when one brings calamity upon oneself, there is no escape." Natural disasters can be evaded, but human-made calamities cannot. If the mountain wood were burned by lightning, it might regenerate; but being cut down day after day with axes and adzes, it will eventually become barren. If the human conscience is occasionally shaken by external things, it might recover; but if it is eroded daily by material desires ("cut down day after day"), it will end up "not far from birds and beasts."

"Cut down with axes and adzes" also implies a crucial detail: the people who cut the wood are also human. This means that it is human beings (their desires) who harm human beings (their conscience). This creates a self-contradictory tragedy: the sprouts of goodness within human nature are eroded by human desires rooted in human nature itself. The reason the external environment can harm the human conscience is ultimately because humans themselves have needs for pleasure, profit, and fame. The wood of Ox Mountain was cut down not by itself, but by men—but why did men cut it$29 Because men needed timber. Similarly, the loss of human conscience occurs not because the conscience dies on its own, but because it is eroded by material desire—but where do material desires come from$30 From humans themselves.

This self-contradiction is precisely the greatest theoretical challenge facing Mencius's doctrine of inherent goodness: If human nature is inherently good, why do people harm their own goodness$31 If people inherently possess a conscience, why do they "abandon their conscience" (fang qi liangxin)$32 This question will be discussed in detail later in the section on "abandoning the heart."

Section 2.3 "Could it remain beautiful$33": The Power of Rhetorical Questioning

"Could it remain beautiful$34" (Ke yi wei mei hu$35) This rhetorical question is the first inquiry in the chapter and the logical starting point for the entire argument.

"Could it remain beautiful$36" means: (Under such daily cutting) can it still be luxuriant$37 The answer is obviously no—it cannot. However, the inability to remain luxuriant does not mean the mountain never had the capacity to be luxuriant. The crucial distinction is: the reason for "inability to be beautiful" is the external cutting, not the mountain’s own barrenness.

The logical force of this rhetorical question lies in its ability to separate the "result" (not beautiful) from the "cause" (being cut down), thereby laying the foundation for the subsequent argument—to separate the "non-goodness of man" (result) from the "nature of man" (cause).

This is a consistent debating technique of Mencius. In Mencius (Gongsun Chou I), it is recorded:

Mencius said: "All men have a heart that cannot bear to see the suffering of others. If the former sage-kings had a heart that could not bear to see the suffering of others, they would have possessed a government that could not bear to see the suffering of others. By applying this heart which cannot bear suffering to govern the world, governance can be managed as easily as turning something over in the palm of the hand. The reason I say all men have a heart that cannot bear to see the suffering of others is this: If a man today suddenly sees a small child about to fall into a well, he will experience alarm and compassion—not because he wishes to gain favor with the child's parents, not because he wishes to win praise from his neighbors and friends, and not because he dislikes the sound of the child’s cries. From this perspective, one who lacks the heart of alarm and compassion is not fully human; one who lacks the heart of shame and aversion is not fully human; one who lacks the heart of yielding and deferring is not fully human; one who lacks the heart of discerning right and wrong is not fully human. The heart of alarm and compassion is the sprout of Benevolence (ren); the heart of shame and aversion is the sprout of Righteousness (yi); the heart of yielding and deferring is the sprout of Propriety (li); the heart of discerning right and wrong is the sprout of Wisdom (zhi). For a person to possess these four sprouts is just like possessing four limbs."

Here, Mencius uses the analogy of the "child falling into a well" to prove "all men possess a heart that cannot bear to see the suffering of others," and his argumentation method is identical to that of the "Wood of Ox Mountain" chapter—both use concrete, perceptible examples to reveal an abstract, non-intuitive principle. The "child falling into a well" reveals "man has sprouts of goodness," while the "Wood of Ox Mountain" reveals "how these sprouts of goodness are lost" and "how they can be recovered after being lost." They are two sides of the same coin, jointly constituting the complete argument for Mencius's doctrine of inherent goodness.