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 ZinsserUltimately the product that any writer has to sell is not the subject being written about, but who he or she is.
William ZinsserThere are all kinds of writers and all kinds of methods, and any method that helps you to say what you want to say is the right method for you.
William Zinsser