The necessity of production is so easily proved that any hack philosopher of industrialism can fill ten books with it. Unfortunately for these neo-economist thinkers, these proofs belong to the nineteenth century, a time when the misery of the working classes made the right to work the counterpart of the right to be a slave, claimed at the dawn of time by prisoners about to be massacred. Above all it was a question of surviving, of not disappearing physically. The imperatives of production are the imperatives of survival; from now on, people want to live, not just to survive.