Finally finished reading the book "Three Hundred Years of the Western Zhou". I have been reading it intermittently for almost half a month. The three hundred years of the Western Zhou laid the foundation of Chinese civilization. Its feudal system, ritual and music system, and clan system had a profound impact on the politics, culture, and society of later generations, becoming the institutional blueprint and cultural source of the feudal society that followed. The rise and fall of the Western Zhou conforms to the laws of social development; no dynasty can last a thousand years. All things can be entangled. The Book of Changes says: 'The prosperous must decline, the declining must prosper, the revived must be leveled, and the reversed must be smooth.'