And even if nothing were to remain in the work both demanding and passionate Master, we could, we could never count for anything his prologue to the history and "the terrible education of facts." A veil was torn apart: a statue in Marx, embalmed, becoming a pious and iconic reference, Althusser substituted at once a conceptual lever iconoclastic, unique to debunk all the dominant ideologies, including those who claimed from him. Whatever the excesses or dead ends of certain analyzes, the implementation of conceptual tools also questionable, the aggiornamento of Marxist theory was finally undertaken. Aut it or not realized, thinking he knew his report to practice this is another story: ours ...