I think you must remember that a writer is a simple-minded person to begin with and go on that basis. He's not a great mind, he's not a great thinker, he's not a great philosopher, he's a story-teller.
To find out what we presently are and where we are going, we must know what we have been and what others have done; and this, because the humanities are at once the creation and the interpreters of the past, is the great purpose of humanistic scholarship.