Sippican Cottage has some advice or words to that effect.
[My own advice: First read heavily and widely.Read the great writers but also read the hacks who can somehow hold your attention. Be wary of mocking a published author but don't bow down to them. Re-write numerous times. Read your drafts slowly and out-loud. Read them as if you are searching for a hidden message. Watch the flow. Consider each word but remember that you will have to finish and when you do you'll probably still be unsatisfied. Worry if you are completely satisfied.]