My Humble Opinion of LanTing Preface

That the “LinHe preface” has fourty two words more than the “LanTing Preface” at the end is a key point for scholars to test the truth of Lanting Preface.Seeing from the devolpment and characteristics of the preface,the fourty two words lacked in LanTing Preface are very important to its integrity.Thus,the present author also doubts about the authenticity of LanTing Preface author’s authenticity to “LanTing preface” is queried to some extent.