June 2020，Zhang Genghua's "The Truth of Bet365 app download" is published by Oriental Publishing House。This book was published by Fudan University Press in 2004 under the name "Introduction to Philosophy of Bet365 app download"，The updated version was released in October 2009。Compared with the previous two editions，A lot of additions and revisions have been made to this edition。The third one、四、One section added to each of the five chapters，There are also some forward and backward adjustments to some text paragraphs。In addition，Corrected some misconceptions in the first two editions，Correction of typo、Irregularities in errata and comments。

This book is positioned as an introductory book on Bet365 app download theory。As a beginner's "a way and ladder"，The whole book has a strong sense of reality。As in "The "Moon Problem" of History"，The usual view of historians is that Bet365 app download facts are objective，It exists outside and is not affected by the historian。Bet365 app download facts are stored in Bet365 app download materials in a direct way，Historians only need to follow certain rules and procedures，You can get Bet365 app download facts。Since the birth of history，This has become common sense。This common sense is rejected by many historians、Criticisms of Bet365 app download Philosophers。Among them，American historian Carl Becker’s criticism is the most representative。He believes that Bet365 app download facts are not as clear-cut as bricks，Can measure the weight，Something hard、Something cold。“These lost objective facts are replaced by dim reflections and vague influences or ideas about them，And these are intangible、The dim and vague reflections and impressions are all that are left of the real events that happened。”The author quotes British historian Edward Carr、French philosopher Raymond Aron、British philosopher Mike Oakeshott、Similar views of American postmodern icon Hayden White，Concluded that there is no doubt about the original、A natural Bet365 app download fact，Becomes the conclusion of the elusive "moon problem" in the field of history。The moon problem is a metaphor from a professor at Cornell University in the United States，Means the moon when no one is looking at it，It does not exist。

Common sense，Bet365 app download theoretical monographs will not cite too many Bet365 app download materials，Mostly just theory，The book is different。The author writes in the "Introduction": "This book serves as a gateway and ladder for beginners，It is necessary for readers to understand the academic debates in this field and some basic views of both sides of the debate，For this，This book is in the text or notes，Quotes relevant discussions and some wonderful conclusions from many scholars，Quotes should be quoted directly from the original book as much as possible，And indicate the source or source，Readers click on the picture to find out，You can further read many classic works and papers in this field。"Such as the 1920s-1940s，Theoretical research on history in my country has reached a small climax，Many Bet365 app download introductions、General Bet365 app download works have been published one after another。Here，The author has a note，Notes in order of publication date，From Cao Zuoxi's "General Theory of History" in 1909 to Liu Jie's "On History" in 1948，A total of 26 reference books are listed before and after。There are countless examples like this in the book。In addition，The whole book closely integrates Bet365 app download theory and Bet365 app download practice。Those who are careful can find it，Illustrations are not only from professional books，Also from newspapers and periodical materials such as "Wenhui Daily", "China Reading News" and "Reference News"。These sources indicate that beginners should read more newspapers。Materials everywhere，The author’s good intentions can be seen here。In addition，A basic reader and reference book are included at the back of the book，Beginners can also "get started" here。

The theory of Bet365 app download stratification began with Liu Jie in the first half of the 20th century、Lei Haizong and other scholars，Liu Zehua began to conduct special research in the mid-1980s、He Zhaowu，And to the author，It is intended to be more elaborate。The author thinks，History is an extremely complex subject，Including almost all forms of cognition and varieties of knowledge。Therefore，History can be divided into four levels: the first level，Confirmation of Bet365 app download facts；Second floor，Understanding of Bet365 app download events；Third level，Summary of Bet365 app download laws；The fourth floor，Evaluation of Bet365 app download significance。Different levels have different subject attributes。If history is not stratified，But discuss the nature of history in general、Objectivity and other issues，It will lead to generalization，It is easy to misunderstand the problem。

The author’s point of view is，Only by layering can we understand the progress of academic issues，Only on this basis can we further promote academic development。This research method is suitable for the discussion of many academic issues today，The Bet365 app download assumptions mentioned in the article are just one example。As for how to discuss Bet365 app download theoretical issues more deeply under stratification，Readers need to read carefully and figure it out，Only in this way can we understand the way to govern history。

　(Author’s unit: Department of Bet365 app download, East China Normal University)