This book, admirable in so many respects, power in its break and style, is even more intimidating for me in that, having formely had the good fortune to study under Michel Foucault, I retain the consciousness of an admiring and grateful disciple. Now, the disciple's consciousness, when he starts, I would not say to dispute, but to engage in dialogue with the master or, better, to articulate the interminable and silent dialogue which made him into a disciple-this disciple's consciousness is an unhappy consciousness.