Mark Twain created many themes that authors still use despite the fact that methods of writing have changed over time. Many authors took those themes and incorporated them into their novels. For example, Stephen Crane used Twain's themes in his novel, The Red Badge of Courage; this shows that Twain's way of writing inspired Crane, and many other authors. The first theme Crane used in his novel that he selected from Twain was "Man inhumanity to fellow Man.  The following theme Crane interpreted in his novel was that the main characters must experience "right of passage.  The final theme Crane constructed from Twain's work was the ever present "hand of providence  that must provide for the main character and steer him to good. Twain's 3 themes in his writing inspired and guided Crane in his writing of The Red Badge of Courage. Crane used Twain's theme "Man inhumanity to fellow Man  throughout his whole novel; this theme shows how Man interacts with others through good or evil will. "He felt that in this crisis his laws of life were useless. Whatever he had learned of himself was here of no avail. He was an unknown quantity. He saw that he would again be obliged to experiment as he had in his early youth.  (Pg. 10). "He felt that he would like to thrash the gen-eral, or at least approach and tell him in plain words exactly what he thought him to be.  (Pg. 40). "He had a mad feeling against his rifle, which could only be used against one life at a time. He wished to rush forward and strangle with his fingers. He craved a power that would enable him to make a world-sweeping gesture and brush all back. His impotency appeared to him, and made his rage into that of a driven beast.  (Pg. 32). These quotes clearly display that Crane used Twain's theme "Man inhumanity to fellow Man , which shows how man interacts with another man or life with good or evil will, as a reference in writing his novel A Red Badge of Courage. Through