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A Deep Study of Xunzi's 'Jie Pi' Chapter: On the Cognitive Foundations of the Mind—Emptiness, Unity, and Tranquility

This paper provides an in-depth analysis of the core proposition in Xunzi's 'Jie Pi' concerning the nature of cognition: 'How does man know$41 By the mind. How does the mind know$42 By being empty, unified, and tranquil.' It systematically interprets the dialectical relationship and philosophical implications of 'emptiness' (xu), 'unity' (yi), and 'tranquility' (jing) in cognition, tracing their ancient intellectual origins to reveal the systematicity and sophistication of Pre-Qin cognitive theory.

Tianwen Editorial Team February 16, 2026 58 min read PDF Markdown
A Deep Study of Xunzi's 'Jie Pi' Chapter: On the Cognitive Foundations of the Mind—Emptiness, Unity, and Tranquility

Chapter Eleven: Cognition and Governance – From Personal Cultivation to World Order

Section 1: The Political Dimension of the Cognitive Problem

Master Xunzi’s theory of cognition is by no means a purely philosophical issue; it possesses an extremely profound political dimension.

In the view of pre-Qin thinkers, the foundation of governing the world lay in the ruler’s "Brightness" (Ming)—the ruler must clearly perceive the essence of things, accurately judge right and wrong, and reasonably arrange people and resources—then the world will be well-governed. Conversely, if the ruler is "obscured" (bi)—unable to see the truth of things, making erroneous judgments, and arranging personnel improperly—the world will fall into chaos.

Therefore, "Dispelling Obscuration" is not merely a problem of individual cognitive cultivation; it is a matter of grave political importance concerning the order or chaos of the realm.

Master Xunzi dedicates a significant portion of Jie Bi to discussing instances where rulers of past dynasties were led to ruin by "obscuration," and he presents Master Shun’s "Concentration on the Dao" as the highest paradigm for governance. This clearly indicates that his theory of cognition has a distinct political orientation.

Section 2: The Ideal of Governance: "All things accomplished without issuing orders for every affair."

"In antiquity, when Shun governed the world, all things were accomplished without him issuing orders for every affair."

This is Master Xunzi’s ideal of governance: no need to issue decrees for every specific matter, yet all things are naturally accomplished.

How is this ideal realized$19 The key is "Concentrating on the Dao" (Yi Yu Dao)—grasping the fundamental Dao of governance.

What is the fundamental Dao of governance$20 In Master Xunzi’s system, it includes at least the following aspects:

First, Ritual and Righteousness (Li Yi 礼义). Ritual and Righteousness are the foundation of social order. With a complete system of Li Yi, people are in their proper places and fulfill their roles, eliminating the need for the ruler to interfere in every detail.

Second, Worthy Talent (Xian Neng 贤能). Appointing worthy and capable individuals to all levels of office. With worthy officials, specific tasks will naturally be handled by others, requiring no personal intervention from the ruler.

Third, Moral Education (Jiao Hua 教化). Through teaching and influence, ensuring the populace voluntarily adheres to social norms. With good education, the people self-regulate, eliminating the need for harsh laws.

These three—Li Yi, Xian Neng, and Jiao Hua—together constitute the fundamental Dao of governance. The ruler only needs to grasp these three, and specific affairs will operate naturally—this is "all things accomplished without issuing orders for every affair."

Section 3: The Political Cognition of "Sitting in a room, one sees the Four Seas"

"Sitting in a room, one sees the Four Seas; dwelling in the present, one discusses antiquity."

This is not only a description of the "Great Clarity and Brightness" state but also a requirement for the ideal ruler's cognitive ability.

A good ruler does not need to travel across the Four Seas to know the situation there—by establishing comprehensive systems for information gathering and reporting (such as the "wind collection" (cai feng 采风) system), he can grasp the dynamics of the realm from within his palace.

A good ruler does not need to personally experience everything in the past to understand the lessons of history—by studying historical texts and the experience of predecessors, he can make reasonable judgments in the present.

The foundation for this ability is "Emptiness, Singularity, and Stillness":

"Emptiness"—not filtering information through one’s own pre-existing biases, but openly receiving reports from all directions.

"Singularity"—not being overwhelmed by the flood of information, but grasping the core concerns and focusing energy on the most critical issues.

"Stillness"—not being agitated by urgent but trivial matters, but maintaining inner calm to make sober judgments.

Section 4: Historical Cognition: "Comparing and correlating governance and disorder, one comprehends their standards."

"Comparing and correlating governance and disorder, one comprehends their standards (tong qi du 通其度)."

By referencing and examining the experiences of order and disorder in history, one grasps the standards (du) of governance.

"Comparing and correlating" (can ji 参稽)—referencing and examining. "Governance and disorder" (zhi luan 治乱)—periods of order and chaos. "Comprehending their standards" (tong qi du)—understanding the principles therein.

This is the requirement Master Xunzi places on historical cognition: not merely memorizing historical facts, but extracting normative understanding (the Du) from history.

Why "comparing and correlating" rather than just "observing"$21 Because a single historical event may be coincidental; only by comparing and synthesizing multiple events can one eliminate accidental factors and find truly regular principles.

This method was widely applied in pre-Qin thought. Zhou Yi, Appendix B states:

"Did the rise of the Yi occur in the Middle Antiquity$22 Did its creators have concerns$23"

The rise of the Zhou Yi probably occurred in the Middle Antiquity$24 Did its creators have a sense of anxiety$25 —This method of understanding a text by examining its historical context is a specific form of "comparing and correlating."

Section 5: Cognition and Decision-Making

In governance, the ultimate purpose of cognition is to make correct decisions.

Master Xunzi says:

"Then it is sufficient to determine right and wrong and resolve suspicion."

"Determine right and wrong" (ding shi fei 定是非)—judging what is correct and what is wrong. "Resolve suspicion" (jue xian yi 决嫌疑)—making a decision in doubtful or ambiguous situations.

In political practice, the most difficult task is often not judging obvious right from wrong, but making decisions under "suspicion"—where things appear somewhat right and somewhat wrong, ambiguous situations. This capacity requires the highest level of cognition—which is the result of the state of "Great Clarity and Brightness" achieved through "Emptiness, Singularity, and Stillness."

Conversely:

"If drawn away by small things, its rectitude is externally compromised; if its inner core leans, it is insufficient to resolve even crude principles."

If one is distracted by trivial matters, one loses the ability to judge even crude principles—let alone making sound decisions in complex political situations.

The downfall of many historical regimes occurred precisely because the ruler was drawn by "small things"—indulging in sensory pleasures, favoring flatterers, chasing minor immediate gains while ignoring long-term plans—ultimately leading to a total loss of judgment and the ruin of the state.

Section 6: "Weaving Heaven and Earth and assigning offices to the myriad things"

"Weaving Heaven and Earth and assigning offices to the myriad things, dividing and cutting the Great Principles, the universe is brought within."

This passage describes the highest state of governance: organizing all things between Heaven and Earth with warp and weft, and encompassing the entire cosmos by dividing and cutting the Principles of the Great Dao.

"Warp and weft" (jing wei 经纬)—warp is the vertical line, weft is the horizontal line. When woven together, they form a complete fabric. Organizing Heaven and Earth with warp and weft means establishing a comprehensive system of governance that covers everything vertically and horizontally.

"Assigning offices to the myriad things" (cai guan wan wu 材官万物)—letting everything attain its material potential (cai) and occupy its proper office (guan). This is the goal of governance—people utilizing their talents, things being used to their fullest, and everything in its proper place.

"Dividing and cutting the Great Principles" (zhi ge da li 制割大理)—selecting applicable principles from the Great Dao. The Dao is infinite, but specific governance requires selecting the principles most suitable for the current situation.

"The universe is brought within" (yu zhou li yi 宇宙里矣)—the entire cosmos is brought into orderly governance. Li here means principle. The universe is permeated by Li; everything is orderly.

What a magnificent vision of governance! It implies that a ruler who has attained the state of "Great Clarity and Brightness" can not only govern a state but also understand and manage the order of the entire cosmos.

Of course, the "cosmos" here should not be understood in the modern astronomical sense, but as the pre-Qin concept encompassing "up and down, four directions" (yu 宇) and "past and present" (zhou 宙)—everything in the entire spatio-temporal continuum. If the ruler can grasp the fundamental principles governing all these things, it can be said that he has "divided and cut the Great Principles, and the universe is brought within."

Section 7: The Warning of Master Zeng

At the very end of the passage, Master Xunzi quotes Master Zeng:

"Master Zeng said: 'If his courtyard is only suitable for catching mice, how can he sing with me!'"

This means that a person whose scope is small engages in small matters; a person whose scope is large pursues high-level activities. The two cannot be compared.

"Catching mice" (bo shu 搏鼠)—trivial, low-level affairs. "Singing" (ge 歌)—lofty, high-level activities.

Master Zeng uses this analogy to warn people: do not be submerged by trivial matters, but aspire to a higher goal, pursuing the state of "Great Clarity and Brightness."

This aligns perfectly with Master Xunzi’s overall thesis—do not be led astray by "small things" or obscured by a "single corner," but rather "Concentrate on the Dao" and strive toward the state of "Great Clarity and Brightness."