When you're a writer, you no longer see things with the freshness of the normal person. There are always two figures that work inside you, and if you are at all intelligent you realize that you have lost something. But I think there has always been this dichotomy in a real writer. He wants to be terribly human, and he responds emotionally, but at the same time there's this cold observer who cannot cry.
Vigorous writing is concise. A sentence should contain no unnecessary words, a paragraph no unnecessary sentences, for the same reason that a drawing should have no unnecessary lines and a machine no unnecessary parts. This requires not that the writer make all his sentences short, or that he avoid all detail and treat his subjects only in outline, but that every word tell.