The earliest historical document in China that discusses the relationship between speech and meaning is the

China's earliest historical document that discusses the relationship between words and meaning is the Zhou Yi (周易), which is about getting the meaning and forgetting the image.

The Zhouyi, which includes the I Ching and the Yi Chuan, one of the "Three Yis" (another point of view: it is believed that the I Ching is the Three Yis, not the Zhouyi), is one of the traditional classics. The formation of the Zhouyi was recorded in the Han Book of Arts and Letters as "three saints, three ancient times". According to legend, ancient Fu Xi left the image of heaven and earth; in the Middle Ages, King Wen of Zhou performed the Way of the Book of Changes; and in the recent past, Confucius and his disciples noted the Book of Changes and made it into the Book of Changes. The book is a collection of the most important texts in the history of the world, and it is the first of its kind in the world.

The "Classic" is mainly sixty-four hexagrams and three hundred and eighty-four lines, hexagrams and lines have their own instructions (hexagrams, hexagrams), as a divination. The "Biography" contains seven explanations of the trigrams and lines **** ten articles, collectively known as the "Ten Wings", rumored to have been compiled by Confucius.

Spring and Autumn period, the official school began to gradually evolve into a private private school. Yi science before and after the cause, the development of change, a hundred schools of thought, Yi science is followed by the occurrence of differentiation. Since Confucius praised the Yi, "Zhou Yi" was regarded as the sacred text of Confucianism, the first of the six sutras. Outside of the Confucianism, there are two branches of Yijing and the development of the Confucianism Yijing side by side: one for the old forces still exist in the divination of Yijing; the other for the Taoism of Laozi Yijing, Yijing began to be divided into three branches.

The Siku Quanshu General Catalog categorizes the history of Yi science into "two schools and six sects". The two schools, that is, the Elephant School of mathematics and the School of Yili; six Zong, one for divination, two pray Zong, three for the creation of the Zong, four for the Laozhuang Zong, five for the Ruori Zong, six for the history of the Zong.