"He tries to go to life. So does every author except the very worst, but after all most of them live on predigested food. The incident or character may be from life, but the writer usually interprets it in terms of the last book he read. For instance, suppose he meets a sea captain and thinks he's an original character. The truth is that he sees the resemblance between the sea captain and the last sea captain Dana created, or who-ever creates sea captains, and therefore he knows how to set this sea captain on paper.