How did the previous cultural classics survive when Qin Shihuang burned books and buried Confucianism?

Private ownership and official preservation. Human consciousness? Burning books and burying Confucianism? Is to burn all the books and kill all the literati. But in fact, Qin Shihuang was able to unify the whole country, not by the so-called tyrannical killing, but by his mind. Qin Shihuang is not a fool. Naturally, he won't do anything to kill and burn all the literati and books. A man who can do such a stupid thing and completely destroy a civilization can't unify the whole country, because he has a brain problem. Qin Shihuang actually burned those fraudulent books, but it was actually those magicians who were trapped and killed.

Before Qin Shihuang, China was a divided continent, and each country had its own unique social habits and culture, which hindered the reunification of the country. Qin Shihuang saw this very thoroughly. People at that time were ignorant and superstitious. After Qin Shihuang unified the whole country, he stood on the dragon chair and looked down. On the left are people who shout "Long live the Jade Emperor" all day long, on the right are people who chant Buddhist scriptures all day long and shout "The Elysium of the West", behind them are a group of people who wrap themselves in mystery and play with witches and gods all day long, and in front of them are so-called people who believe in monsters. In short, this country is full of different cultures, and everyone is opinionated and convinced. How to rule this world?

Qin Shihuang sought immortality. From this perspective, in fact, Qin Shihuang did not oppose feudal superstitious culture, but he opposed everything that tried to split his world. The world can be superstitious, but there must be a unified belief, otherwise people will be mentally inconsistent and this country will fall apart sooner or later. Therefore, Qin Shihuang burned all folk books that promoted feudal superstition and ghosts and gods, and killed all those who promoted ghosts and gods.

However, after all, Qin Shihuang was a human being, not a fairy. People bury a book in the ground, or simply move their homes to deep mountains and forests. How about these? Classic? It will be preserved and will be seen again when the right opportunity comes. But it is undeniable that during this period, many cultural fruits in China were indeed burned.