So it cannot be maintained that the appearance of antagonism is fully borne out by experience. But what is evident is that the human element represents instability and the constructive element stability; and the adjustment of the two keeps art alive. All art that has life in it must be in unstable equilibrium, for, indeed, all thought whatever induces instability. Stable equilibrium, if such a thing could be conceivable, is merely abeyance of activity. As a matter of fact there is no part of the universe which is in stable equilibrium, art as little as the rest of it. Art is, in the widest sense, man’s highest expression of the Spirit of the Universe; that is of the effects which are produced in his inner man by his personal experiences in it and his cogitations about it, and art’s life is governed by the same laws. In the universe all things seem to tend toward stable equilibrium, and yet of necessity when it seems to be approached some new direction of force disturbs it and sets up new systems of motions which may last for ages. So in art there has been a tendency to deal with the claims of feeling and the claims of form at different times. At certain periods in art’s history the human element predominated and the claims of organization were either ignored or overlooked. The result was incoherence, and the need of more circumspect procedure gave organization an excessive spell of attention. Convention then took the place of realities and art became the playground of ingenious dry-as-dusts, till the human element again asserted its claims and progress swayed in the direction of instability again; and so the great rhythm was maintained. But it would be absurd to pretend that the alternation proceeded regularly without yielding to external influences. The direction which art took was often influenced by social conditions external to itself. A chance whiff of fashion or a wave of impulse in favor of intellectual subtleties would naturally cause a phase of art in which human feeling would be crowded out by superfluity of organizing ingenuity. A state of society in which a few people enjoyed the results of their ancestors having annexed all the material advantages of the world and regarded the rest of humanity as merely provided by Providence to minister to their vanities, would be peculiarly favorable to the exuberance of conventional pattern-making and elegant futilities; while the successful overthrow of such a poisonous tradition and the general acceptance of the widest claims of humanity to common justice naturally brought an overwhelming impulse of human feeling into play. But the apparent derangement of the ebb and flow was not actually destructive of the principle, but only affected the length of the periods and the extent of the one influence on the other.