Instruct: Classify the given review into positive or negative sentiment.
Query: Is it haste, lack of insight or both?

As evident, from some very limited part of the book that I have read, the author either lacked the necessary depth of insight to embark on writing a book of such scope or he was in too much haste to publish it or "both". Looking at his autobiography of having published over 300 books on such a vast spectrum of subjects, I tend to believe "both" is the case.For brevity I only confine myself to pointing out that he cites Kharazmi, Biruni and Avicenna, all renowned Iranians, as great Arab scientists, perhaps because they wrote in Arabic.I have only read those parts of the book that were brought to my attention, needless to say that I have not bought the book. I, habitually, research the author prior to purchasing their book.In my view the book is not worthless but has a negative value as it misinforms. It probably demeans any bookshelf that it sits on.