When power leads men towards arrogance, poetry reminds him of his limitations. When power narrows the areas of man's concern, poetry reminds him of the richness and diversity of his existence. When power corrupts, poetry cleanses. For art establishes the basic human truth which must serve as the touchstone of our judgment. The artist, however faithful to his personal vision of reality, becomes the last champion of the individual mind and sensibility against an intrusive society and an officious state. The great artist is thus a solitary figure. He has, as Frost said, a lover's quarrel with the world. In pursuing his perceptions of reality, he must often sail against the currents of his time. This is not a popular role. If Robert Frost was much honored in his lifetime, it was because a good many preferred to ignore his darker truths.