I don't want to speak too disparagingly of my generation (actually I do, we had a chance to change the world and opted for the Home Shopping Network instead), but there was a view among the student writers I knew at that time that good writing came spontaneously, in an uprush of feeling that had to be caught at once; when you were building that all-important stairway to heaven, you couldn't just stand around with your hammer in your hand.
