Translation: The Tao (道) is empty and void; when one uses it, it seems as though it will never be filled.
Analysis: This is the most widely accepted interpretation. The essential nature of the Tao is emptiness; precisely because it is empty, it is inexhaustible and will never overflow. Using the metaphor of a hollow vessel that can hold things only because it is empty, this reading emphasizes the boundless function of "emptiness" (虚).
Similar views: Wang Bi ("以其无形，故冲而用之，又不盈也" — "Because it has no form, it is empty when used, and never fills up").
Translation: The Tao surges forth ceaselessly like water; no matter how it is used, it never overflows.
Analysis: This takes "冲" in the sense of surging motion. The Tao is like a never-exhausted spring, flowing forth without end. It emphasizes the inexhaustible generative power of the Tao as the source of all things.
Similar views: This echoes Chapter 45: "大盈若冲，其用不穷" ("Great fullness seems empty; its use is inexhaustible").
Translation: The nature of the Tao is harmonious and humble; when it exerts its function, it never becomes self-satisfied or complacent.
Analysis: A cultivation-oriented reading from the Heshanggong tradition. Here "冲" takes the sense of harmonious humility, and "盈" the sense of self-satisfaction and complacency. The Tao is great precisely because it is forever humble and never self-aggrandizing. This interpretation points toward self-cultivation — the Sage (圣人) emulates the Tao and remains as humble as an empty valley.
Similar views: Heshanggong ("道用之于人，或不能满盈者" — "When the Tao is applied to human affairs, it perhaps cannot become full and overflowing").
Translation: The laws governing heaven and earth are like emptiness itself — they can never be exhausted through use.
Analysis: Here "道" is understood as natural law, with "冲" serving as a metaphor for the formlessness of such laws, and "不盈" as a metaphor for their perennial applicability — they are never depleted through use. This is a reading from the perspective of natural philosophy.
Similar views: This resonates with Chapter 35: "道之出口，淡乎其无味" ("When the Tao is expressed in words, it is bland and flavorless").
Translation: It is unfathomably deep — it seems to be the root and origin of all things.
Analysis: This is the most widely accepted interpretation. The Tao is immeasurably deep, like the ancestor and root-source of all things. "渊" describes the immeasurability of the Tao, while "宗" identifies its ontological status — the ultimate ground of all things.
Similar views: Wang Bi ("渊兮似万物之宗，言其处卑不可得而同" — "Fathomless, it seems to be the ancestor of all things — this says that it dwells in lowliness and cannot be equated with anything").
Translation: It is like a deep abyss — it seems to be the sovereign of all things.
Analysis: Using a deep pool as a concrete analogy — the Tao is as profoundly still and silent as an abyss, yet it is the sovereign toward which all things turn. This expresses the unity of the Tao's humility and its supreme authority.
Similar views: Heshanggong ("道渊深不可知，似万物之所宗" — "The Tao is so fathomlessly deep it cannot be known; it seems to be that to which all things pay homage").
Translation: It is the confluence where all things gather — it seems to be the ultimate destination of all things.
Analysis: Both "渊" and "宗" are taken in the sense of "gathering." The Tao is not only the wellspring from which all things emerge, but also the destination to which all things ultimately return. This emphasizes the Tao's function of convergence — all things issue forth from the Tao and return to the Tao.
Similar views: This echoes Chapter 16: "万物并作，吾以观复。夫物芸芸，各复归其根" ("All things flourish together; I observe their return. The myriad creatures proliferate, and each returns to its root").
Translation: (The Tao) wears down the sharpness of all things, unravels their entanglements, tempers their brilliance, and merges them all into the dust.
Analysis: This interpretation treats the four phrases as descriptions of the Tao's function. Through its formless power, the Tao wears away every sharp edge, resolves every dispute, harmonizes every radiance, and blends all things into a common plainness. This expresses the Tao's transformative function — guiding all extremes toward harmonious equilibrium.
Similar views: Wang Bi ("锐挫而无伤，纷解而不劳，和光而不污，同尘而不染" — "It blunts the sharp without causing harm, unravels the tangled without toil, softens the light without being sullied, and merges with the dust without being defiled").
Translation: (One who cultivates the Tao should) restrain one's sharp edges, dispel one's inner turmoil, soften the radiance of one's wisdom, and blend in with the dust of the common world.
Analysis: A cultivation-oriented reading from the Heshanggong tradition. The four phrases constitute four principles for cultivating the Tao: conceal one's talents, dissolve contention, refrain from displaying one's brilliance, and dwell among ordinary people without setting oneself apart. This is what later generations call "和光同尘" (softening one's light and merging with the dust).
Similar views: Heshanggong ("挫去其锐利" — "Wear away one's sharpness"; "含德之人除灭忿争" — "A person of inner virtue eliminates anger and strife"; "虽有独见之明，当和混于众人" — "Though one possesses unique insight, one should blend in with the crowd"; "当与众人同垢尘也" — "One should share in the dust and grime of common people").
Translation: (The Tao) wears down the eager, impetuous desires of all things, dissolves their contention, harmonizes their brilliance, and returns all things alike to simplicity and plainness.
Analysis: Here "锐" is understood as the impetuous urge of all things to assert themselves. The function of the Tao is to guide all things from agitation to composure, from chaos to harmony, from splendor to plainness. This is both a cosmological statement and an implicit political philosophy — the sage-king transforms all under heaven through non-action (无为).
Similar views: This passage recurs in Chapter 56, where it explicitly describes the conduct of "one who knows" (知者).
Translation: (The Tao is) limpid and transparent — it seems to exist, yet also seems not to.
Analysis: The Tao is as clear and transparent as pure water, without the slightest trace or impurity, so that it appears to hover between being and non-being. This emphasizes the state of the Tao — formless and imageless, yet truly real.
Similar views: Heshanggong ("言道清湛然，似若不可见" — "This says the Tao is clear and limpid, as if it cannot be seen").
Translation: (The Tao is) profound and inscrutable — it seems to exist, yet also seems not to.
Analysis: An interpretation in the Wang Bi tradition. The Tao is deep and hidden; it cannot be directly perceived through phenomena, so one can only say it "seems to exist." This hovering between being and non-being is precisely the nature of the Tao's transcendence of both being and non-being.
Similar views: Wang Bi ("其体不彰，故曰湛兮似或存也" — "Its substance does not manifest itself; therefore it is said: 'Limpid and still, it seems as if it may exist'"). This echoes Chapter 14: "是谓无状之状，无物之象" ("This is called the form of the formless, the image of the imageless").
Translation: (The Tao is) submerged and hidden from view — yet it seems to abide there, silently enduring.
Analysis: Here "湛" is taken as a phonetic loan for "沉" (to sink, to submerge). The Tao lies submerged and concealed within all things; though it shows no outward trace, it endures forever. This interpretation emphasizes the characteristic of the Tao as "hidden yet imperishable."
Similar views: This is close to Chapter 6: "绵绵若存，用之不勤" ("Unending, as if enduring; its use is effortless").
Translation: I do not know whose offspring it is; it seems to have existed before the Lord on High.
Analysis: This is the most widely accepted interpretation. Laozi uses a rhetorical question to express the supreme status of the Tao: I do not know where the Tao came from or who produced it; it seems to be older even than the supreme Heavenly Lord (天帝). This represents a major breakthrough in Laozi's philosophy: the Tao stands above and precedes the Heavenly Lord.
Similar views: Wang Bi ("不亦似帝之先乎" — "Does it not seem to have preceded the Lord on High?"); Heshanggong ("道自在天帝之前" — "The Tao existed before the Heavenly Lord").
Translation: I do not know whose offspring it is; it seems to be the ancestor of the cosmic order.
Analysis: Here "帝" is understood as the supreme cosmic order. The Tao not only precedes the Heavenly Lord as a divine figure, but is the very source and ancestor of all order — the operating principles of heaven, earth, and all things all originate from the Tao.
Similar views: This is consistent with Chapter 25: "有物混成，先天地生" ("There was something formed in chaos, born before heaven and earth").
Translation: I do not know what sort of thing produced it; it had already taken form before the very first bud-stem of all things.
Analysis: A distinctive philological reading. "象" takes the meaning of "trace, sign"; "帝" is restored to its Shuowen Jiezi original meaning of "flower calyx" — the bud-tip where things first sprout. The Tao existed before the very first moment of all things' germination. This interpretation brings "帝" back from a religious concept to a naturalistic one.
Similar views: Similar discussions by philologists such as Gao Heng in Laozi Zhenggu (Correct Exegesis of Laozi).
Translation: I do not know who gave birth to it; it seems to be the ancestor of the Lord on High.
Analysis: An interpretation in the Heshanggong tradition. The Tao has no parents and comes from nowhere; even the Lord on High is a descendant of the Tao. This unequivocally declares the supremacy of the Tao — in the ancient Chinese belief system, the Heavenly Lord was the supreme deity, and yet the Tao stands above even him.
Similar views: Heshanggong ("道自在天帝之前，此言道之老也" — "The Tao existed before the Heavenly Lord; this speaks of the Tao's great antiquity").
This chapter contains 17 interpretation combinations.
[Core Divergences]
Chapter 4 is a direct portrayal of the Tao's fundamental nature, using a series of sustained metaphors to outline its four great characteristics: empty yet inexhaustible in use (冲而不盈), deep as the root-source of all things (渊兮似宗), dissolving all opposition into harmony (挫锐解纷和光同尘), and formless yet eternally present (湛兮似或存). The closing line, "象帝之先" ("it seems to have preceded the Lord on High"), is a momentous philosophical declaration — the Tao precedes the Heavenly Lord, liberating Chinese thought from a religious framework into the realm of philosophy. The interpretive divergences center on two main dimensions: (1) Wang Bi favors an ontological reading, treating the entire chapter as a description of the Tao's essential nature — empty, deep, harmonizing, hidden; (2) Heshanggong favors a cultivation-oriented reading, in which "冲而不盈" teaches humility, "挫锐解纷" teaches the concealment of one's talents, and "和光同尘" teaches one not to set oneself apart from ordinary people. The two interpretations are not contradictory but rather reflect the dual nature of "the Tao models itself on what is natural" (道法自然) — the Tao is both the spontaneous state of the cosmos and the supreme paradigm that the cultivator emulates.