And there was light

This book is a collection of academic essays by Wang Dongjie, a professor in the Department of History at Tsinghua University. Divided into four sections, the book includes over forty articles. The first section focuses on socio-cultural commentary, discussing topics such as the role of intellectuals, the expansion of global perspectives, the transformation of traditional concepts, and the challenges brought by the digital age. The second section primarily consists of book reviews, presenting the author's concise comments on various cultural and ideological issues in modern China. The third and fourth sections collect miscellaneous essays related to reading and methods of academic study. The book's content is rich and extensive, offering a multi-dimensional exploration of hot topics in real-world social life from cross-disciplinary perspectives, including the transformation of traditional concepts, the challenges of the digital age, and methods of reading and academic study. It possesses both academic depth and relevance to real life, revealing a multi-layered humanistic spirit. It fully demonstrates the author's profound academic foundation and keen cultural observation.