The following sounds rather pompous and bombastic, but a writer’s words should exceed his grasp, or what’s a Heaven for (to paraphrase Browning). This actually came about from a list I made when thinking about what traits a character should possess–then I thought, “If Character should have virtue, so should Writer.”
There is more of craft in writing than art. I know a few of the MFA Creative Writing gurus will disagree. However, writers have more in common with blacksmiths than with philosophers. We hammer away at the forge of Story, pounding our red hot words into a shape that will not only be pleasing to our readers but also purposeful and useful.