The editor-in-chief of Corpora of Ma Yifu , Professor Wu Guang invited me to write a preface for the book, although I really don't deserve this job. In the 1990s, when the first volume of Ma's anthology was published, I had the opportunity to appreciate his extensive and profound thought. What I can write is in fact to jot down my study notes of Ma Yifu's works. Without a thorough reading of his completed collection, however, I can only talk about my admiration based on this volume in the hope of drawing the attention of more readers.