Why should historical traditional culture be inherited, developed and abandoned?

We should look at history dialectically. China has a long history. The history of 5,000 years, 6,000 years and 7,000 years is not just talk. If the ancient people didn't know enough, there would be many bad habits, such as foot binding, slavery, polygamy and earlier human sacrifice. These bad habits should be abandoned; In the development of the Chinese nation, countless heroes have made contributions, and their spirit has inspired generation after generation. The Analects of Confucius, the orderly growth of young and old, and ancient cultural and ideological classics are all treasures of the Chinese nation. Everything has two sides, just like a coin. Dialectical analysis, taking its essence and discarding its dross is a truth.