Use the pronoun only a few times.
The first section provides an outline of what a good argumentative essay should look like when it is done. The second section provides a step-by-step process that can lead you to this happy result. PART ONE: THE ARGUMENTATIVE ESSAY IN OUTLINE FORM For starters, here’s a very brief outline. One reason why writing philosophy papers well is difficult is that it entails doing two things well. Part of good philosophy is good grammar, and the other part is good thinking. Good thinking consists of presenting, in a logical way, good reasons to support your thesis. 7 -Do not end a paragraph with a sentence that introduces the topic of the next paragraph. Some students learn this habit in middle school or high school, but it is best to leave it behind at the college level. This habit violates the writing principle that each paragraph should contain just one main idea and topic. Avoid wordiness and self referencing-- “In this paper I will…,” “In today’s society” or “In this essay. . .”. All your essays should be written in the 3rd person pronoun (she, him, their, her, them, he etc.) objective point of view in formal writing. Refer to pages 112-3, 182-3 in Four in One. An essay tries to make a point. This is perhaps the most important and most challenging aspect of the essay. An essay is not just a bunch of words, or even a bunch of paragraphs. An essay all fits together; it all points in one direction. An essay leads to one conclusion. This is what makes an essay different from, say, an article in an encyclopedia, which may be a relatively brief and interesting piece of nonfiction. No, you should use the pronoun only a few times at a time in an  essay. You don't want to use pronouns for the entire essay. If you  did, other people might get confused on … what you are talking about.
http://www.calstatela.edu/faculty/cendy/writing_tips.pdf http://puffin.creighton.edu/phil/Stephens/WRITINGM.html http://www.calstatela.edu/faculty/cendy/writing_tips.pdf http://www.itc.csmd.edu/lan/michelel/Some%20Conventions%20of%20Standard%20Formal%20Written%20English.doc http://www.answers.com/Q/What_is_a_claim_in_a_essay http://www.answers.com/Q/How_does_one_avoid_unsupportable_claims_in_an_essay
how does one avoid unsupportable claims in an essay