We must take one step more. We need not only the complete separation from reality by the changed forms of experience, but we must demand also that this unreal thing or event shall be complete in itself. The artist, therefore, must do whatever is needed to satisfy the demands which any part awakens. If one line in the painting suggests a certain mood and movement, the other lines must take it up and the colors must sympathize with it and they all must agree with the pictured content. The tension which one scene in the drama awakens must be relieved by another. Nothing must remain unexplained and nothing unfinished. We do not want to know what is going on behind the hills of the landscape painting or what the couple in the comedy will do after the engagement in the last act. On the other hand, if the artist adds elements which are in harmony with the demands of the other parts, they are esthetically valuable, however much they may differ from the actual happenings in the outer world. In the painting the mermaid may have her tail and the sculptured child may have his angel wings and fairies may appear on the stage. In short, every demand which is made by the purpose of true art removes us from reality and is contrary to the superficial claim that art ought to rest on skillful imitation. The true victory of art lies in the overcoming of the real appearance and every art is genuine which fulfills this esthetic desire for history or for nature, in its own way. The number of ways cannot be determined beforehand. By the study of painting and etching and drawing merely, we could not foresee that there is also possible an art like sculpture, and by studying epic and lyric poetry we could not construct beforehand the forms of the drama. The genius of mankind had to discover ever new forms in which the interest in reality is conserved and yet the things and events are so completely changed that they are separated from all possible reality, isolated from all connections and made complete in themselves. We have not yet spoken about the one art which gives us this perfect satisfaction in the isolated material, satisfies every demand which it awakens, and yet which is further removed from the reality we know than any other artistic creation, music. Those tones with which the composer builds up his melodies and harmonies are not parts of the world in which we live at all. None of our actions in practical life is related to tones from musical instruments, and yet the tones of a symphony may arouse in us the deepest emotions, the most solemn feelings and the most joyful ones. They are symbols of our world which bring with them its sadness and its happiness. We feel the rhythm of the tones, fugitive, light and joyful, or quiet, heavy and sustained, and they impress us as energies which awaken our own impulses, our own tensions and relaxations.