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 family law system have had a profound impact on the politics, culture, and society of later generations, becoming the institutional blueprint and cultural source of feudal society in later times. The rise and fall of the Western Zhou conforms to the laws of social development; no dynasty can last a thousand years. Everything can be entangled. The Book of Changes states: those who thrive must decline, those who decline must thrive, those who return must be leveled, and those who resist must be in accord.