The translation of "Preface to the Biographies of Taoism" is as follows:
Since the Han Dynasty, there have been many written works, accumulated for hundreds of thousands of years, reaching the point of overwhelming, and it has not stopped. Xu Wenzheng said to people: "We must burn books again." "Book burning" was a cruel act of the King of Qin. Wenzheng was not taboo about talking about it, but what did he actually mean? Chen Gong, Zuofang Bo of Guangdong, selected and printed the "Tao Xue" from the "Biographies of Song History" compiled in the Yuan Dynasty, and studied it with people who had the same interest in it. The entire "History of the Song Dynasty" is widely used in the world, but Chen Gong only focused on the research of this volume. Alas, I know his true intention. Confucius said: "Even in a small village with only ten households, there must be people like me who are loyal and trustworthy, but they are not as eager to learn as I am." Now Chen Gong promotes Taoism to the world, so that scholars are mainly engaged in Taoism and are interested in Taoism. Explore its mysteries. So, isn't it possible that this kind of scholarship will not be spread to the world, but can "reach the highest"? It will not stick to the superficial learning of the world, but can benefit the world. Isn't it possible? I used to admire Chen Gong's knowledge, but now I see how much he has contributed to academics. It can be said that he has exhausted all ways to govern the world.
I hope the above translation of "Preface to the Biography of Taoism" can be helpful to you.