“Will anyone understand it outside Paris? That is open to doubt. The special features of this scene, full of local colour and observations, can only be appreciated in the area lying between the heights of Montmartre and the hills of Montrouge, in that illustrious valley of flaking plasterwork and gutters black with mud; a valley full of suffering that is real, and of joy that is often false, where life is so hectic that it takes something quite extraordinary to produce feelings that last.”