Huangdi Sijing

The Huangdi sijing (simplified Chinese: 黄帝四经; traditional Chinese: 黃帝四經; pinyin: Huángdì sìjīng; lit. "The Yellow Emperor's Four Classics") are long-lost Chinese manuscripts that were discovered among the Mawangdui Silk Texts. They are also known as the Huang-Lao boshu (simplified Chinese: 黄老帛书; traditional Chinese: 黃老帛書; pinyin: Huáng-Lǎo bóshū; lit. "Huang-Lao Silk Texts"), in association with the "Huang-Lao" philosophy named after the legendary Huangdi (黃帝 "The Yellow Emperor") and Laozi (老子 "Master Lao"). They are thought by modern scholars to reflect a lost branch of Daoism, referred to as the "Huang-Lao school of thought".

Read more about Huangdi Sijing:  The Four Texts, Philosophical Significance