Article consisting of 2 CD of approximately 44 minutes each. Conference very interesting and revealing historical aspects uncharacteristically disclosed. ONFRAY addresses the method of study of the philosophers, the origin of Western culture, the earliest forms of Christianity, scholastic period of Montaigne, Nietzsche, and ends with some questions of listeners of the conference on the reasons development of Christianity. All very interesting. But listening was soon over, and unfortunately, this set of 2 CD is very expensive and certainly much more than a book whose reading lasts longer and offers more developments. This CD collection deserves to be democratized and sold much cheaper.