The task was to combine the two [ Paul Cézanne's dialectical method revealing the process of seeing - Courbet by his materialism]. Followed up separately, each would lead to a cul-de-sac: Courbet's materialism would become mechanical; the force of gravity, which gave such dignity to his subjects, would become oppressive and literal. Cézanne's dialectic would become more and more disembodied and its harmony would be obtained at the price of physical indifference. Today, both examples are followed up separately.