Laozi said in Tao Te Ching that a wise man must be silent. Just like the book about Laozi that I am talking about now, I don't need to ask, and I also know that it is absolutely ignorant and unintelligent. "The speaker is not as silent as the knower" means that I said it myself. Bai Juyi said, since I said so, he is naturally very wise, but why did he write so many words himself? Bai Juyi's poems are the best in the world to slap Lao Zi. Even if Lao Tzu is fashionable and sees it with his own eyes, he should just turn a deaf ear. Hahahaha smiles, and there is nothing to refute.