People are used to saying, as if it were an established fact, that Anti-Oedipus is the book that brings the mark of May 1968 on to the philosophical stage. Circumstances conspire to give weight to this view: in May, Gilles and Félix had marched with the students and workers in Paris, they had met and started to build their collaborative relationship, they had participated in the anti-psychiatric adventure and in the action committees against prisons. But all of these biographical details still say nothing.¹