What, then, is the object, what the method, of an art, and what the source of its power? The whole secret is that no art does "compete with life." Man's one method, whether he reasons or creates, is to half-shut his eyes against the dazzle and confusion of reality. The arts, like arithmetic and geometry, turn away their eyes from the gross, coloured and mobile nature at our feet, and regard instead a certain figmentary abstraction. Geometry will tell us of a circle, a thing never seen in nature; asked about a green circle or an iron circle, it lays its hand upon its mouth. So with the arts. Painting, ruefully comparing sunshine and flake-white, gives up truth of colour, as it had already given up relief and movement; and instead of vying with nature, arranges a scheme of harmonious tints.

