Hemingway worked as a journalist before becoming one of the most influential authors of the 20th century. His fiction usually focuses on people living essential, dangerous lives—soldiers, fishermen, athletes, bullfighters—who meet the pain and difficulty of their existence with stoic courage. His celebrated literary style, influenced by Ezra Pound and Gertrude Stein, is direct and terse, yet particularly suited to his elemental subject matter. Which of his works earned him the Pulitzer Prize? Discuss