本文認為，成書於戰國中期的「黃帝之學」的代表作──帛書《黃帝四經》，首次把刑德與陰陽結合起來，認為天道生陰陽，刑屬陰，德屬陽，陽貴而陰賤；又認為春夏為德，秋冬為刑，先德後刑以養生。這種思想被董仲舒繼承並改造的「大德小刑」、「先德後刑」及「刑者德之輔」的德主刑輔理論，成為中國傳統法律文化的核心內容。帛書《黃帝四經》把刑德與陰陽合而論之，以陰陽為刑德之自然根據，反映了「推天道以明人事」的運思路向，從而開啟了中國古代法律文化自然化的先河。

　　　　　The Silk Manuscript four Classics of Huang Di's Thoughts claims that Yin/Yang are produced by the Natural Law; penalty is Yin while moral education is Yang, and Yang is valuable while Yin is base. Besides, it assumes that spring and summer are the symbols of moral education and autumn are the symbol of penalty. Dong Zhong-Shu, the preeminent scholar in the Han Dynasty, carried on the idea and modified it into the theory that moral education is principal while Penalty is subordinate. The Silk Manuscript four Classics of Hunag Di's Thoughts sees Yin/Yang as the natural basis of penalty and moral education, thus starting the course of naturalizing the legal culture of ancient China.