The paper might include references to the way the paper is being organized and variations of the central thesis. Although you don't want to repeat yourself, there are different ways of restating your argument in different contexts that help the reader to get the point. Organization works not only on the level of the whole paper but on the levels of the paragraph and sentence. There should be a logic underlying individual paragraphs and sentences. Style Good ideas can be well or poorly expressed.
Clarity is an aspect of style as well as of organization.
Writing is somewhat more formal than speech, but it should nevertheless remain direct, simple, and personal. Passive constructions are a common characteristic of wordy and awkward writing. Consider editing them out when you revise. Tone is an aspect of style. There is a standard written language, which establishes guidelines for correct word choice, grammar, and spelling.