Independently of their justifications, the thought structure of the economists and that of the classificatory doctors coincide in broad terms: the space in which disease is isolated and reaches fulfilment is an absolutely open space, without either division or a privileged, fixed figure, reduced solely to the plane of visible manifestations; a homogeneous space in which no intervention is authorized except that of a gaze which is effaced as it alights, and of assistance whose sole value is its transitory compensation a space with no other morphology than that of the resemblances perceived from one individual to another, and of the treatment administered by private medicine to a private patient.