Writing organizes and clarifies our thoughts. Writing is how we think our way into a subject and make it our own. Writing enables us to find out what we know-and what we don't know-about whatever we're trying to learn.
William ZinsserTips can make someone a better writer but not necessarily a good writer. That's a larger package - a matter of character. Golfing is more than keeping the left arm straight. Every good golfer is a complex engine that runs on ability, ego, determination, discipline, patience, confidence, and other qualities that are self-taught. So it is with writers and all creative artists. If their values are solid their work is likely to be solid.
William Zinsser