We have only one story. All novels, all poetry, are built on the never-ending contest in ourselves of good and evil. And it occurs to me that evil must constantly respawn, while good, while virtue, is immortal. Vice has always a new fresh young face, while virtue is venerable as nothing else in the world is.
East of Eden by John Steinbeck
That may be the best (and perhaps only good) line to come out of that book.