An Exploration of Pre-Qin Philosophical Origins of "Those Whose Universes are Vast and Stable Emit the Light of Heaven" in Zhuangzi's "Geng Sang Chu"

Part Five: "Learning What One Cannot Learn" — Transcendental Cultivation

Chapter 13: Examination of "The Scholar Learns What He Cannot Learn" (Xué Zhě, Xué Qí Suǒ Bù Néng Xué Yě)

Section 1: What is "Learning What One Cannot Learn"$51

"The scholar learns what he cannot learn." On the surface, this seems contradictory: If it "cannot be learned," how can one "learn" it$52 Isn't this self-contradictory$53

However, it is precisely in this seeming contradiction that Zhuangzi reveals a profound truth.

Secular learning pertains to what one can learn—skills, knowledge, rituals, texts—things that can be acquired through instruction. However, the truly important things—the essence of the Dao, the true appearance of all things, the meaning of life—these are things that "cannot be learned" because they transcend the realm of intellect and cannot be acquired through the transmission of knowledge.

Yet, precisely because they "cannot be learned," they require "learning" all the more—this "learning" is no longer secular learning (accumulation of knowledge) but a transcendent "learning"—the process where the Dao naturally manifests through emptiness, stillness, forgetting the self, and letting go.

This perfectly aligns with Laozi Chapter 48: "In the pursuit of learning, there is daily increase. In the pursuit of the Dao, there is daily decrease." Secular "learning" is "daily increase"—constantly adding knowledge. Daoist "learning" is "daily decrease"—constantly reducing intellectual attachments. When learning reaches its end, even the act of "learning" itself disappears—at this point, the Heavenly Dao naturally manifests.

Section 2: Survey of "Learning" Theories in Pre-Qin Philosophy

To deeply understand Zhuangzi's "learning what one cannot learn," we must first survey the theories of "learning" (Xué) in the various pre-Qin schools.

"Learning" in the Analects:

Analects, Xue Er states:

"The Master said, 'To learn and, when timely, to practice it—is this not a pleasure$54'"

Confucius's "learning" emphasizes "timely practice" (Shí Xí)—frequently practicing what is learned. The content of this "learning" is primarily the Six Arts (rites, music, archery, charioteering, calligraphy, mathematics) and the Way of benevolence and righteousness.

Analects, Wei Zheng states:

"If one studies but does not think, one is lost. If one thinks but does not study, one is in peril."

Learning and thinking must be balanced. This "learning" remains within the domain of intellect—acquiring knowledge and virtue through study and reflection.

"Learning" in Xunzi:

Xunzi, Quan Xue (Exhortation to Learning) states:

"The superior person says: Learning cannot cease. Indigo is taken from the madder plant, yet it is bluer than indigo; ice is made from water, yet it is colder than water."

Xunzi’s "learning" emphasizes uninterrupted accumulation—"learning cannot cease." Its direction is gradual advancement from the shallow to the deep, from the low to the high—"indigo emerges from the madder plant and surpasses it." This "learning" also operates within the intellectual framework.

And further:

"Without accumulating steps, one cannot travel a thousand li; without accumulating small streams, one cannot form a great river."

This emphasizes the importance of accumulation. Step by step, one reaches a thousand li.

"Learning" in Mozi:

Mozi, Xiu Shen (Cultivating the Self) states:

"Even if a scholar possesses learning, action is its root."

The "learning" of the Mohists takes "action" (Xíng) as its root. What is learned must be put into practice; otherwise, learning is meaningless.

Common Characteristics of "Learning" in These Schools:

First, Finitude—the content of learning is finite and definable. Second, Accumulation—learning is a process of continuous accumulation. Third, Intellectualism—learning is conducted through intellect (rational thought, memory, judgment).

The Subversive Nature of Zhuangzi’s "Learning":

Zhuangzi’s "learning what one cannot learn" subverts these three characteristics:

First, Infinity—the content of learning is infinite and indefinable ("what one cannot learn"). Second, Reduction—learning is not accumulation but reduction ("daily decrease in the pursuit of the Dao"). Third, Transcendence of Intellect—learning is not conducted through intellect but transcends it.

This subversion is not a denial of "learning" but an elevation of it. Secular learning has its value, but stopping there leads to peril, as in Zhuangzi, Yang Sheng Zhu: "To pursue the boundless with what is bounded is perilous." Only by transcending secular learning and entering the realm of "learning what one cannot learn" can one truly comprehend the Heavenly Dao.

Section 3: The Concrete Content of "Learning What One Cannot Learn"

What exactly is the thing that "cannot be learned"$55

First, The Dao.

Zhuangzi, Zhi Bei You, states:

"The Dao cannot be heard, for hearing is not it; the Dao cannot be seen, for seeing is not it; the Dao cannot be spoken, for speech is not it. How can the shape of form be known if it is without form$56 The Dao does not submit to names."

The Dao cannot be heard, seen, or spoken. Whatever can be learned through hearing, observation, or speech is not the Dao itself. The Dao is "unlearnable"—it transcends all intellectual means. Nevertheless, the cultivator must still "learn" it—this "learning" is not hearing, observing, or speaking, but "Fasting of the Mind," "Forgetting the Self," "My Self Fades Away"—allowing the Dao to manifest naturally through an empty and still mind.

Second, The State of the True Person.

The state of the True Person described in Zhuangzi, Da Zong Shi—"knows not the joy of living, nor the aversion to death," "dreams not in sleep, worries not in waking," "breathes deeply to the heels"—these states cannot be achieved through learning (intellectual accumulation). They appear naturally after cultivation reaches its peak. Yet, the cultivator still strives toward this direction in "learning"—not by learning how to breathe to the heels (which would become artificial action), but by emptying the mind to the utmost degree, allowing breathing to naturally reach the heels.

Third, The Sound of Heaven (Tiān Lài).

Zhuangzi, Qi Wu Lun, states:

"You have heard the sounds of men (Rén Lài), but have not heard the sounds of Earth (Dì Lài). You have heard the sounds of Earth, but have not heard the sounds of Heaven (Tiān Lài)!"

The sounds of men (artificial sounds) can be learned—music, singing. The sounds of Earth (natural sounds) can be listened to—wind, water. But the Sound of Heaven cannot be "learned"—it is not a sound perceptible by the ear, nor can it be understood by knowledge. It is the voiceless sound resulting from the natural operation of all things. What the cultivator must "learn" is this unlearnable Sound of Heaven.

Fourth, The Principle of Equalizing All Things (Qí Wù).

Zhuangzi, Qi Wu Lun, states:

"Heaven and Earth were born together with me, and the ten thousand things are one with me. Since they are already one, can I still speak of it$57 Since I have already spoken of 'one,' can I still refrain from speaking$58 One and speech make two; two and one make three. From here onward, even clever calculators cannot arrive, let alone the common people!"

"Heaven and Earth were born together with me, and the ten thousand things are one with me"—this state cannot be "learned" through knowledge. One can intellectually grasp "all things are one," but this understanding itself creates a distinction—the "I" who knows "all things are one" becomes separate from the "all things are one." The true "all things are one" is a state where even the thought of "knowing all things are one" does not exist. This state transcends intellect and is "unlearnable." Yet the cultivator strives toward it—this "striving" is the "learning what one cannot learn."

Section 4: The Relationship between "Learning What One Cannot Learn" and "Knowing What One Cannot Know"

"Learning what one cannot learn" points to a more fundamental epistemological issue in pre-Qin philosophy: Can one know what one cannot know$59

Zhuangzi, Qi Wu Lun, states:

"Suppose you and I argue, and you defeat me, and I do not defeat you. Is it that you are truly right and I am truly wrong$60 Suppose I defeat you, and you do not defeat me. Am I truly right and you truly wrong$61 Are some of us right, and some of us wrong$62 Are all of us right, or are all of us wrong$63 If you and I cannot know each other, we rely on a third party to judge. If we seek one who agrees with you to judge, since they agree with you, how can they judge$64 If we seek one who agrees with me to judge, since they agree with me, how can they judge$65 If we seek one who is different from both you and me to judge$66 Since they are different from both you and me, how can they judge$67 If we seek one who agrees with both you and me to judge$68 Since they agree with both you and me, how can they judge$69 Thus, you, I, and others cannot know each other, so must we wait for someone else$1 ... Thus, you, I, and others cannot truly know each other."

This passage discusses the impossibility of establishing right and wrong through argumentation. Whether you win or lose the debate, it does not determine what is truly right or wrong. The conclusion is: "You, I, and others cannot truly know each other."

This "inability to know each other" is the epistemological basis for "cannot learn." If even the distinction between right and wrong cannot be established, then all knowledge built upon that distinction becomes unreliable. However, only by acknowledging this "inability to know" can one transcend the limits of intellect and enter the illumination of "Heavenly Light." This is the epistemological significance of "learning what one cannot learn."

Chapter 14: Examination of "The Actor Acts What He Cannot Act" (Xíng Zhě, Xíng Qí Suǒ Bù Néng Xíng Yě)

Section 1: What is "Acting What One Cannot Act"$2

"The actor acts what he cannot act." The structure is identical to the previous statement. "Acting what one cannot act" is a transcendent form of action.

Secular action pertains to what one can act—obeying rites, fulfilling duties, completing tasks—all actions within the scope of human capability. However, truly profound action—action aligned with the Heavenly Dao, action of non-action that achieves everything—is "cannot be acted," because it transcends the scope of human power.

How does it transcend human power$3 Because true "action" (Xíng) is not artificial "doing," but the natural operation of the Heavenly Dao expressed through the person. Like a river flowing—the water does not intentionally "act" to flow, but the topography compels it. Similarly, the action of the true cultivator is not intentional action, but the Heavenly Dao naturally operating through him.

Section 2: Action Through "Non-Action" (Wú Wéi)

"Acting what one cannot act" is essentially "acting through non-action."

Zhuangzi, Tian Dao, states:

"The virtue of the emperor is to take Heaven and Earth as his model, the Dao and Virtue as his basis, and non-action as his constant practice. By non-action, one uses the world and still has surplus; by action, one is used by the world and still lacks. If one makes it a constant practice to be non-active, one is honored."

"To make non-action a constant practice" (Yǐ Wú Wéi Wéi Cháng)—to use non-action as the daily mode of operation. This "non-action" is not inaction but acting without human intent. Action occurs, but it is not "I" acting; it is the Heavenly Dao acting through "me." This is "acting what one cannot act"—what "I" cannot act (because it exceeds my ability) the Heavenly Dao can act through "me."

The story of Cook Ding carving an ox in Zhuangzi, Yang Sheng Zhu, is a vivid demonstration of this meaning:

"Cook Ding was carving an ox for Lord Wenhui. The places his hand touched, the parts his shoulder leaned on, the places his feet trod, the parts his knee pressed—all made resonant sounds, like the chanting of music from the Mulberry Forest, or the convergence of the classical melodies."

Cook Ding’s skill in carving reached perfection. Every movement of his hand, shoulder, foot, and knee was flawless, perfectly in rhythm like music. Lord Wenhui admired his skill. Cook Ding replied:

"What I love is the Dao, which goes beyond mere technique. When I first began carving oxen, I saw only the whole ox. After three years, I no longer saw a whole ox. Nowadays, I encounter them with my spirit rather than my eyes; my senses halt, and my spirit roams at will. I follow the natural grain, piercing the great cavities, guiding the blade along the great interstices, relying on what is already so. I avoid the tendons and sinews, let alone the large joints!"

"What I love is the Dao, which goes beyond mere technique"—he seeks the Dao, which surpasses mere skill. "I encounter them with my spirit rather than my eyes; my senses halt, and my spirit roams at will. I follow the natural grain..."

This is the specific manifestation of "acting what one cannot act." Cook Ding’s carving is no longer performed by Cook Ding's "I"—the "I" (senses, intellect) has ceased its work. It is the "Spirit" (Shén) that acts—the spirit directly senses the natural grain and acts. This action of the "Spirit" is the "action that cannot be acted"—an action beyond the scope of Cook Ding’s personal ability, yet perfectly realized through him.

Section 3: Comparison of "Action" Theories in Pre-Qin Philosophy

"Action" in Confucianism:

Analects, Li Ren states:

"The Master said, 'The superior person desires to be slow in speech but swift in action.'"

Confucius emphasizes the importance of action—speech should be cautious, action swift. This "action" is conscious and purposeful—acting benevolence, righteousness, propriety, and filial piety.

Analects, Gongye Chang states:

"The Master said, 'Listen to their words and observe their actions.'"

Action is the standard for testing a person. This "action" remains within the framework of intellect and morality.

"Action" in Mohism:

Mozi, Gui Yi states:

"Among all affairs, nothing is more worthy than Righteousness (Yì)."

Mohist "action" is guided by "Righteousness" as the highest standard—public justice and rectitude. All actions should adhere to righteousness. This "action" also remains within the framework of human-defined morality.

The Transcendence of Zhuangzi’s "Action":

Zhuangzi’s "acting what one cannot act" transcends the framework of Confucian and Mohist "action." It is not acting benevolence, righteousness, or justice—these are things one can act, with clear content and standards. "Acting what one cannot act" is acting the Heavenly Dao—the Dao is formless and nameless, indefinable, thus "unactable." Yet, the cultivator’s body, speech, and actions, if they become the flowing of the Heavenly Dao, constitute "acting what one cannot act."

Zhuangzi, Tian Yun (The Movement of Heaven), asks:

"Does Heaven move$4 Does Earth remain still$5 Do the sun and moon compete for their courses$6 Who presides over this$7 Who sustains this$8 Who sits idly and causes this to occur$9 Is it that some mechanism compels it$10 Or is it that once moving, it cannot stop itself$11"

Heaven’s movement, Earth’s stillness, the alternation of the sun and moon—who presides over these$12 Who sustains them$13 Is it some mechanism that forces it$14 Or is it that once set in motion, it cannot stop$15

Zhuangzi raises these questions but offers no definitive answer—because the answer is "unknowable." However, the movement of Heaven and Earth, sun and moon, is indeed happening—this is the supreme example of "acting what one cannot act." Heaven does not know why it moves, yet it moves; Earth does not know why it is still, yet it is still. This "not knowing" yet "acting" is "acting what one cannot act."

The cultivator emulates Heaven and Earth, and should also "act without knowing"—acting naturally without conscious intention. At this point, the action transcends the scope of "I" and becomes the flow of the Heavenly Dao.

Section 4: Ethical Implications of "Acting What One Cannot Act"

Does "acting what one cannot act" imply one can do whatever one pleases$16 Does it mean moral standards are unnecessary$17

This is a crucial question. The answer is no. "Acting what one cannot act" is not doing whatever one wishes, but "doing what one cannot do"—allowing the Heavenly Dao to act through oneself. The action of the Heavenly Dao follows its own law—"The Way of Heaven benefits without harming" (Tiān Zhī Dào, Lì Ér Bù Hài) (Laozi 81). The action of the Dao is always beneficial and harmless to all things. Therefore, acting according to the Dao’s law is necessarily good, right, and beneficial to all things.

However, this "good," "right," and "beneficial" is not defined by human convention but by the Dao itself. These may coincide with, or they may transcend, human definitions. For example, secular "good" might be "rescuing the poor," while the Dao’s "good" might be "allowing all things to fulfill their nature." The latter may include the former, or it may transcend it.

Zhuangzi, Da Zong Shi, states:

"When springs dry up, fish huddle together on the ground, blowing moisture on each other and moistening each other with their slime. This is less satisfying than forgetting each other in the rivers and lakes."

"Moistening each other with slime" (Xiāng Rú Yǐ Mò) is the secular good—fish struggling to survive in a dried spring. "Forgetting each other in the rivers and lakes" (Xiāng Wàng Yú Jiāng Hú) is the Dao’s good—fish swimming freely in abundant waters, not needing mutual aid. From the perspective of the Dao, "forgetting each other in the rivers and lakes" is far better than "moistening each other with slime"—because it allows every fish to live out its full life, rather than merely surviving a predicament.

The ethical implication of "acting what one cannot act" is striving for the good of "forgetting each other in the rivers and lakes"—allowing all things to fulfill their nature and find their place. This good transcends secular goodness (slime-moistening) but is deeper and more fundamental.

Chapter 15: Examination of "The Debater Debates What He Cannot Debate" (Biàn Zhě, Biàn Qí Suǒ Bù Néng Biàn Yě)

Section 1: What is "Debating What One Cannot Debate"$18

"The debater debates what he cannot debate." The structure is the same as the previous two statements. "Debating what he cannot debate" is a transcendent form of debate.

Secular debate concerns what one can debate—right vs. wrong, good vs. evil, beautiful vs. ugly, profit vs. harm—these issues can all be argued through reasoning and refutation. However, the truly profound questions—the essence of the Dao, the unity of all things, the equality of life and death—these issues "cannot be debated," because they transcend the scope of language and logic.

Yet, the cultivator must still "debate" them—this "debate" is not argumentation using words and logic, but "debating" through existence itself—responding to those un-debatable ultimate questions through one’s very being.

Section 2: Zhuangzi’s Critique of "Debate"

Zhuangzi held a profound critical view of secular debate.

Zhuangzi, Qi Wu Lun, states:

"Suppose you and I argue, and you defeat me, and I do not defeat you. Is it that you are truly right and I am truly wrong$19 Suppose I defeat you, and you do not defeat me. Am I truly right and you truly wrong$20 Are some of us right, and some of us wrong$21 Are all of us right, or are all of us wrong$22 If you and I cannot know each other, we rely on a third party to judge..."

As quoted before, this passage argues for the impossibility of drawing definite conclusions through argument. Winning or losing a debate does not equate to determining right or wrong.

And further:

"Debate, too, has its non-debate. The Great Debate does not speak (Dà Biàn Bù Yán)."

"The Great Debate does not speak"—the most profound debate uses no words. The most profound debate is about what cannot be expressed through language—it "debates" through silence and existence, through action.

Zhuangzi, Yu Yan (Allegorical Statements), states:

"All ten thousand things are seeded, interchanging through different forms. Beginning and end are like a ring, without a sequence one can grasp. This is called Heavenly Balance (Tiān Jūn). Heavenly Balance is the Heavenly Boundary (Tiān Ní)."

The "Heavenly Balance" (Tiān Jūn)—the balanced operation of the Dao. All things transform into each other through different forms; beginning and end cycle like a ring, without a discernible sequence. This is the operation of the Heavenly Balance.

This "Heavenly Balance" is the "Heavenly Balance" (Tiān Jūn) mentioned later—the balance of the Heavenly Dao. Within this balance, all distinctions of right and wrong, good and evil, beauty and ugliness dissolve—because all things are in constant flux, nothing is eternally fixed.

This "Heavenly Balance" is precisely what the later phrase "Heavenly Balance will defeat him" refers to. "Debating what one cannot debate" is debating this "Heavenly Balance"—the equilibrium of all things, the cycle of transformation, the dissolution of right and wrong. These things cannot be debated with words (because words inherently create distinctions), but only demonstrated through existence.

Section 3: Comparison of Zhuangzi’s Transcendence with Pre-Qin Debate Traditions

The pre-Qin period was a golden age for debate.

The School of Names (Mingjia):

Gongsun Long argued: "A white horse is not a horse." He also argued: "Hardness and whiteness are two things." Hui Shi proposed "Ten Points on the Exhaustiveness of Things":

"That which is supremely great has no outside, this is called the Great One; that which is supremely small has no inside, this is called the Small One. Without thickness, it cannot accumulate; yet it can span a thousand li. Heaven and Earth are low, mountains and marshes are level. The sun at its zenith is still angled; things are being born just as they are dying. The Great Sameness differs from the Small Sameness; this is called the difference between Great and Small Sameness. All things are both the same and different; this is called the Great Sameness and Difference. The South is infinite yet finite. Today I arrive at Yue, yet yesterday I came. A linked chain can be unlinked. I know the center of the world: it is south of Yan and north of Yue. Love all things universally; Heaven and Earth are one body." (Zhuangzi, Tianxia)

Hui Shi’s debates revealed the relativity of concepts—greatness and smallness, high and low, sameness and difference, today and yesterday—none are absolute. This debate was already profound on the intellectual level.

However, Zhuangzi believed Hui Shi "pursued all things without returning" (Zhuī Wàn Wù Ér Bù Fǎn)—chasing distinctions among things without knowing how to return. Hui Shi’s debates, while exposing the relativity of concepts, still operated within the realm of concepts—using concepts to negate concepts. Zhuangzi’s "debating what one cannot debate" seeks to transcend concepts themselves—not negating concepts with concepts, but transcending concepts through silence ("The Great Debate does not speak").

Zhuangzi, Tianxia, evaluates Hui Shi:

"Hui Shi was multifarious, his writings filling five carts. His Dao was convoluted and contradictory, his words imprecise. His idea of classifying things was: 'That which is supremely great has no outside, this is called the Great One; that which is supremely small has no inside, this is called the Small One.' ... Hui Shi took this as his greatness, and displayed it to the world, delighting the debaters of the world. ... Hui Shi spent his days debating with men using his knowledge, making a spectacle of himself among the debaters of the world—this was his foundation. Yet Hui Shi, with his mouth and discourse, considered himself the most worthy, saying, 'How grand are Heaven and Earth!' Shi was ambitious but lacked technique. Judging by the Dao of Heaven and Earth, Hui Shi’s abilities are like the labor of a gnat or a fly. What use is he to the things of the world$23"

Zhuangzi’s critique of Hui Shi: Hui Shi wrote five carts full of diverse writings, learned and adept at debate, yet "his Dao was convoluted and contradictory," and his "words imprecise." He considered himself the most worthy, yet from the perspective of the Heavenly Dao, his ability was no more than the effort of a mosquito or a fly—insignificant. Why$24 Because Hui Shi’s debates remained trapped in the intellectual plane, failing to transcend intellect to enter the Dao.

Zhuangzi’s critique of Hui Shi precisely illustrates the opposite of "debating what one cannot debate"—Hui Shi debated what can be debated (the relativity of concepts) but failed to debate what cannot be debated (the absolute nature of the Dao, or rather, the Dao’s transcendence of all relativity).

Debate in Mohism:

Mozi, Xiao Qu (Distinguishing Opposites), states:

"The purpose of debate is to clarify the distinctions between right and wrong, examine the principles governing order and chaos, investigate the location of sameness and difference, scrutinize the relationship between names and realities, settle gains and harms, and resolve doubts and suspicions. It is to imitate the nature of all things, to search for the analogies in all discourse. Using names to name realities, using language to express intent, using justifications to explain origins. To draw by analogy, and to grant by analogy."

The purpose of Mohist debate is to "clarify right and wrong," "examine order and chaos," "scrutinize names and realities," "settle gains and harms," and "resolve doubts." This debate has clear practical goals and strict logical methods ("Using names to name realities, using language to express intent...").

However, Zhuangzi would ask: Who can guarantee that the "right and wrong" you clarify are the true right and wrong$25 Who can guarantee that your standard for examining "order and chaos" is correct$26 Who can guarantee that the "names" you scrutinize correspond to the "realities"$27 These are the ultimate questions that "cannot be debated." While Mohist debate methods are precise, they cannot answer these ultimate questions.

Section 3: Methods of "Debating What One Cannot Debate"

If one cannot debate these things with words, how does one "debate what one cannot debate"$28

Method One: Debating with Silence.

"The Great Debate does not speak" (Dà Biàn Bù Yán)—the most profound debate uses no words. When the debater realizes that language cannot reach ultimate truth, he chooses silence. This silence is not the awkwardness of having nothing to say, but the fullness achieved after transcending language—in silence, the Heavenly Dao naturally manifests.

The dialogue in Zhuangzi, Zhi Bei You:

"Zhi traveled north over the dark waters, ascended Mount Yin Deng, and encountered Wu Wei Wei (Non-Action Speaker). Zhi said to Wu Wei Wei, 'I wish to ask you: With what thought and what contemplation does one come to know the Dao$29 With what place and what attire does one find ease in the Dao$30 With what direction and what Way does one attain the Dao$31' He asked three times, but Wu Wei Wei did not answer—not that he refused to answer, but he did not know how to answer. Zhi could not get an answer, returned south of the White Water, ascended Mount Huque, and saw Kuang Qu (the Mad Humiliator). Zhi questioned Kuang Qu about this. Kuang Qu said, 'Alas! I know, and I was about to tell you.' He was about to speak but forgot what he intended to say. Zhi could not get an answer, returned to the Emperor’s Palace, and saw the Yellow Emperor, asking him. The Yellow Emperor said: 'Begin to know the Dao with no thought and no contemplation; begin to find ease in the Dao with no place and no attire; begin to attain the Dao with no direction and no way.'"

Zhi (Knowledge) asks Wu Wei Wei three questions. Wu Wei Wei does not answer—"not that he refused to answer, but he did not know how to answer." This "not knowing how to answer" is the best answer—the Dao cannot be articulated through words.

Zhi then questions Kuang Qu. Kuang Qu says, "I know," and is about to speak but forgets what he intended to say. This "about to speak but forgot what he intended to say" (Zhōng Yù Yán Ér Wàng Qí Suǒ Yù Yán) perfectly illustrates "debating what one cannot debate"—trying to debate the Dao, the words reach the lips but cannot be spoken, because the Dao truly cannot be expressed in language.

Finally, Zhi consults the Yellow Emperor. The Yellow Emperor answers—but then comments:

"Zhi asked the Yellow Emperor, 'If you and I know this, while they do not, who is right$32' The Yellow Emperor said: 'Wu Wei Wei is truly right; Kuang Qu is close to it. You and I are ultimately not close. The one who knows does not speak; the one who speaks does not know.'"

The Yellow Emperor says Wu Wei Wei is truly correct, Kuang Qu is close, but he and Zhi are far from it. "The one who knows does not speak; the one who speaks does not know."

This is the apex of "debating what one cannot debate"—the best debater (Wu Wei Wei) remains silent because the Dao is ineffable. The next best (Kuang Qu) wants to speak but cannot, because he approaches the Dao. Those who speak (the Yellow Emperor and Zhi) are actually farthest from the Dao.

Method Two: Debating with Existence.

Besides silence, one can "debate" through one’s mode of existence. The cultivator does not say what the Dao is, but demonstrates what the Dao is through his very being. His walking, standing, sitting, and lying, his every word and action, are manifestations of the Dao—this is the most powerful "debate."

The figures in Zhuangzi, De Chong Fu, who had deformed bodies but abundant virtue, are debating through existence. They do not claim high virtue; they simply exist naturally, attracting people. People feel the illumination of the Dao in their presence—this is debate without words, debate through existence.

Method Three: Debating through Allegory.

Zhuangzi’s own "debate" largely occurs through allegorical statements (Yù Yán). Zhuangzi, Yu Yan, states:

"Allegorical statements make up nineteen-twentieths; repeated words make up seventeen-twentieths. The words of the wine-cup spout forth daily, harmonizing with the Heavenly Boundary (Tiān Ní)."

"Allegorical statements make up nineteen-twentieths"—nine-tenths of Zhuangzi’s writing is allegory. Allegory is not direct argumentation or refutation but inspiration through stories. It doesn't state "This is the Dao," but uses a story to lead the reader to personal realization. This realization transcends language and logic, directly touching the Dao—this is the literary method of "debating what one cannot debate."

"The words of the wine-cup spout forth daily, harmonizing with the Heavenly Boundary"—words flow out naturally, like water pouring from a cup, aligning with the natural distinctions of the Dao. These words are not deliberate debates but natural expressions—the speaker himself doesn't know what he is saying, yet it happens to align with the Heavenly Dao. This is "debating what one cannot debate."

Chapter 16: Examination of "Knowing Where to Stop Where One Cannot Know is the Utmost" (Zhī Zhǐ Hū Qí Suǒ Bù Néng Zhī, Zhì Yǐ)

Section 1: The Meaning of "Knowing Where to Stop" (Zhī Zhǐ)

"Knowing where to stop where one cannot know is the utmost (Zhì Yǐ)." This sentence summarizes and elevates the preceding three (learning, acting, debating).

"Knowing where to stop" (Zhī Zhǐ)—knowing where to halt. Where to stop$33 At "what one cannot know" (Qí Suǒ Bù Néng Zhī). That is, recognizing that one's cognition has an insurmountable boundary, and stopping before that boundary—this is the "Utmost" (Zhì Yǐ)—reaching the highest state.

This aligns perfectly with Laozi Chapter 71:

"To know that one does not know is supreme. To not know that one does not know is a defect. The sage is not defective because he recognizes his defect. Since he recognizes his defect, he is not defective."

Zhuangzi’s "Knowing where to stop where one cannot know" is identical to Laozi’s "Knowing that one does not know." Recognizing the limits of cognition and stopping before that limit—this is not a failure of cognition, but its highest achievement.

Section 2: Why is "Knowing Where to Stop" the "Utmost"$34

Why is recognizing one's own unknowing the highest state, rather than pursuing omniscience$35

This question touches upon the fundamental divergence in epistemology within pre-Qin philosophy.

Confucianism (especially the Xunzi lineage) tends toward the view that knowledge can increase infinitely, and learning should be ceaseless. Xunzi, Quan Xue states: "Learning cannot cease." Mohism emphasizes the precision and systemization of knowledge. Zhuangzi, however, posits that knowledge has an insurmountable boundary—the Dao itself.

Why is the Dao the boundary of knowledge$36 Because knowledge operates through differentiation—distinguishing this from that, right from wrong, true from false—but the Dao is "chaotic" (Húndùn), the state of wholeness before all distinctions arise. To comprehend the Dao, which transcends distinction, using the method of distinction, is like measuring infinity with a ruler—it can never be completed.

Zhuangzi, Ying Di Wang, offers the allegory of the death of Chaos (Húndùn):

"The Emperor of the South Sea was named Shù (Quick); the Emperor of the North Sea was named Hū (Sudden); the Emperor of the Center was named Húndùn (Chaos). Shù and Hū often met in the domain of Húndùn, and Húndùn treated them extremely well. Shù and Hū plotted to repay Húndùn’s kindness, saying: 'Every person has seven orifices for seeing, hearing, eating, and breathing; this one alone has none. Let us try to bore them for him.' They bored one orifice a day; after seven days, Húndùn died."

Húndùn had no seven orifices—no sensory distinctions. Shù (Quickness) and Hū (Suddenness) represent the rapid passage of time—they bored seven orifices (sensory distinctions) for Húndùn, and Húndùn died as a result.

This allegory illustrates that distinction (knowledge) kills wholeness (the Dao). When you use knowledge to "know" the Dao, the Dao dies within your cognition—you gain not the Dao itself, but fragments of the Dao dissected by your knowledge.

Therefore, "Knowing where to stop where one cannot know"—stopping at the boundary of cognition—is preserving the wholeness of the Dao. By not boring the orifices of Chaos, Chaos remains alive. At this point, the Dao naturally manifests in its wholeness within your mind—not through analytical knowledge, but through the illumination of "Heavenly Light." This is why "Knowing where to stop" is the "Utmost."

Section 3: The "Zhì" (Utmost) in "Zhì Yǐ"

"Zhì Yǐ" (Zhì Yǐ)—reaching the highest point. The "Utmost" (Zhì) has a special meaning in pre-Qin philosophy.

Zhuangzi, Xiaoyao You, states:

"The Utmost Person has no self; the Spirit Person has no merit; the Sage has no name."

The "Utmost" (Zhì) of the "Utmost Person" (Zhì Rén) is this Zhì. This "Utmost" is not reaching a definite goal, but transcending all goals—"having no self" (Wú Jǐ). When all goals disappear, the cultivator reaches the true "Utmost"—not arriving at a place, but being present everywhere.

Laozi Chapter 45 states:

"The Great Perfection seems flawed, yet its use is unimpaired. The Great Fullness seems empty, yet its use is inexhaustible. The Great Straightness seems crooked, the Great Skill seems clumsy, the Great Eloquence seems stuttering."

"The Great Perfection seems flawed" (Dà Chéng Ruò Quē)—the most perfect thing appears flawed. "The Great Fullness seems empty" (Dà Yíng Ruò Chōng)—the fullest thing seems empty. The "Greatness" (Dà) here is close to "Utmost" (Zhì)—both refer to the highest, ultimate state. The characteristic of this state is seeming imperfection, seeming flaw—"Knowing where to stop where one cannot know" seems like a cognitive defect (not knowing), but is actually the highest achievement of cognition (the Utmost).

Section 4: The Progressive Relationship between "Learning, Acting, Debating, and Knowing"

"The scholar learns what he cannot learn; the actor acts what he cannot act; the debater debates what he cannot debate. Knowing where to stop where one cannot know is the utmost."

These four statements—learning, acting, debating, knowing—form a progressive sequence.

Learning → Acting → Debating → Knowing (Stopping)

This sequence can be understood as four stages of the cultivation process:

First Stage: Learning—Learning the principles that transcend knowledge. At the beginning of cultivation, one must first "learn"—learning what the Dao is, what emptiness and stillness are, what non-action is. This learning enters through intellect but points beyond the intellect.

Second Stage: Acting—Putting what is learned into action. Having learned the principles of the Dao, one must act in accordance with the Dao—Fasting the Mind, Forgetting the Self, acting through non-action. This action transcends secular action; it is the flow of the Heavenly Dao.

Third Stage: Debating—Debating the Dao through existence. After long cultivation, the cultivator's very existence becomes the debate of the Dao—he does not need to use words to argue for the Dao; his existence is the proof of the Dao.

Fourth Stage: Knowing Where to Stop—Recognizing the limits of one's knowledge and stopping before it—this is the ultimate stage, transcending all efforts in learning, acting, and debating, returning to pure emptiness and stillness.

This four-stage progression is actually a process of gradual "decrease"—learning reduces the attachment to knowledge, acting reduces the fabrication of deeds, debating reduces the complexity of language, and knowing where to stop reduces cognition itself. In the end, everything is reduced, leaving only the pure light of the Heavenly Dao—this is the effect of "the Utmost."

Section 5: Comparison with the "Eight Articles" of the Great Learning

The eight articles of the Great Learning—Investigation of Things (Gé Wù), Extension of Knowledge (Zhì Zhī), Sincerity of the Will (Chéng Yì), Rectification of the Mind (Zhèng Xīn), Cultivation of the Person (Xiū Shēn), Regulation of the Family (Qí Jiā), Governing the State (Zhì Guó), and Bringing Peace to the World (Píng Tiān Xià)—also form a sequence of cultivation.

However, the directions of the two are precisely opposite:

The direction of the Great Learning is outward expansion—from investigating things to bringing peace to the world, the scope grows larger. The direction of Zhuangzi is inward contraction—from learning to knowing where to stop, the content decreases.

The endpoint of the Great Learning is "bringing peace to the world"—changing the external world. The endpoint of Zhuangzi is "knowing where to stop"—stopping at inner emptiness and stillness.

This difference reflects the fundamental divergence between Confucianism and Daoism: Confucianism seeks the highest achievement in changing the world; Zhuangzi seeks the highest achievement in returning to the Heavenly Dao. Yet, are they entirely irreconcilable$37

From Zhuangzi’s perspective, if "bringing peace to the world" is done through non-action, it does not violate the Heavenly Dao. From the Confucian perspective, if "knowing where to stop" is realized in daily affairs, it does not neglect human duties. The reconciliation might lie in "learning what one cannot learn, acting what one cannot act"—learning and acting in a way that transcends intellect, thereby neither neglecting human affairs nor violating the Heavenly Dao.