Why the I Ching is the first of all the classics

The I Ching is the theoretical root of natural philosophy and humanistic practice in traditional Chinese thought and culture, and is the crystallization of the thought and wisdom of the ancient Han people, known as the "source of the great way", the ancient imperial science, politicians, military, and businessmen must study the art. The I Ching is the outstanding representative of traditional Han culture; it is also the source of Chinese civilization, as it is vast and subtle, encompassing all things.