1. It means to describe a scholar who only cares about reading and ignores foreign things.

Introduction to the source of a dedicated and read-only sage book

2. From "Augmented Xianwen". ? The author of "Zeng Guang Xian Wen" has never seen any books, except that it was revised by Confucian scholar Zhou during Tongzhi period in Qing Dynasty, which is probably the crystallization of folk creation in Qing Dynasty.

3. Zengguang Xianwen, called Xianwen in ancient times and Xianwen in ancient and modern times, is a children's enlightenment bibliography compiled by China in the Ming Dynasty. The title of the book was first seen in the drama Peony Pavilion in the Wanli period of the Ming Dynasty, so it can be inferred that this book was written in the Wanli period at the latest.