When power leads man toward 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 experience. When power corrupts, poetry cleanses. For art establishes the basic human truths which must serve as the touchstones of our judgement. The artist. . . faithful to his personal vision of reality, becomes the last champion of the individual mind and sensibility against an intrusive society and an offensive state.