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.
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.