Steven Pinker has a piece on chronicle.com that has much of the essence of his book The Sense of Style. In the Chronicle-piece, he describes classic style, which he promotes as the best style for academic writing, more condensed and, honestly, more quotable than I ever remember from Sense:
The guiding metaphor of classic style is seeing the world. The writer can see something that the reader has not yet noticed, and he orients the reader so she can see for herself. The purpose of writing is presentation, and its motive is disinterested truth. It succeeds when it aligns language with truth, the proof of success being clarity and simplicity. The truth can be known and is not the same as the language that reveals it; prose is a window onto the world. The writer knows the truth before putting it into words; he is not using the occasion of writing to sort out what he thinks. The writer and the reader are equals: The reader can recognize the truth when she sees it, as long as she is given an unobstructed view. And the process of directing the reader’s gaze takes the form of a conversation.
Prose is a Window Onto the World!
I will let the problems of ‘truth’ lie for the moment, but I do think writing and thinking is intertwined and one promotes the other. Writing can be used to sort out what one thinks. (I have this idea from good, old McCloskey and find it compelling.) But this is not to say that the final, rewritten, rewritten, and edited text should read as if the writer sorted out thoughts along the way, which I presume is what Pinker has in mind and with which I agree.