I was asked to write a review of your book but have decided to make this into an open letter. I have done so for two reasons. Firstly, there is something rather artificial in writing a review of a book by a person I feel is more than a mere acquaintance and whose work I have read and company I have enjoyed over the years. It is rather deceitful to give the readers of this piece the impression that it is an entirely dispassionate account from someone who is in no way involved with the writer of the book and is thereby unconstrained by the demands of friendship. That will not mean diat I will draw back from reflecting on the things on which I find myself parting company with you but does make clear the context in which I do so. Secondly, in a way, which I hope is consistent with a theme of your book, I want to engage in dialogue rather than the monologue which is the typical genre of the review and hope that you will respond in that precise, systematic way in which you respond so carefully to questions and comments in discussion.