Writers must constantly ask: what I am trying to say? Surprisingly often, they don't know.
William ZinsserWriting improves in direct ratio to the things we can keep out of it that shouldn't be there.
William ZinsserAlso bear in mind, when you're choosing your words and stringing them together, how they sound. This may seem absurd: readers read with their eyes. But in fact they hear what they are reading far more than you realize.
William Zinsser