My commodity as a writer, whatever I'm writing about, is me. And your commodity is you. Don't alter your voice to fit the subject. Develop one voice that readers will recognize when they hear it on the page, a voice that's enjoyable not only in its musical line but in its avoidance of sounds that would cheapen its tone: breeziness and condescension and clichรฉs.
William ZinsserAll writers should strive to deliver something fresh-something editors or readers won't know they want until they see it.
William ZinsserExamine every word you put on paper. You'll find a surprising number that don't serve any purpose.
William Zinsser