Book a burning issue but in no circumstance, the author wielding concepts proposed for years by claiming an uncompromising secularism and of good quality. The book is consisting of a sometimes difficult reading, but important. For my part, I remain nevertheless convinced that unemployment at the "old" would have an integrating effect that would overcome our cultural deadly crash. From this point of view, the economistic approach that involves the author, would not be so false as it claims. Otherwise, I fully share his misgivings about the primacy given by the authorities for many years to diversity on the search for equality .but it's probably easier to reach!