Abraham Lincoln, the greatest of all American presidents, left us a vast legacy of writings, some of which are among the most famous in our history. Lincoln was a marvelous writer—from the humblest letter to his great speeches, including his inaugural addresses, the Emancipation Proclamation, and the Gettysburg Address. His sentences were so memorably crafted that many resonate across the years. "Fourscore and seven years ago," begins the Gettysburg...