This book is one of Mengxue (or “early learning”) books used in China and was first mentioned in the Ming period opera “The Peony Pavilion”. But it was likely that the book predated the opera.This expanded version features content added by various scholars from the Ming and Qing dynasties. The content focuses on how one should behave and treat others.Such books were commonly imported from China and used in local Chinese schools to teach students about civics and morality.