One cardinal rule

Isaac Asimov:

I made up my mind long ago to follow one cardinal rule in all my writing — to be clear. I have given up all thought of writing poetically or symbolically or experimentally, or in any of the other modes that might (if I were good enough) get me a Pulitzer prize. I would write merely clearly and in this way establish a warm relationship between myself and my readers, and the professional critics — Well, they can do whatever they wish.