To write the essays including ethos , pathos and logos one should follow the instructions :
Ethos, or the ethical appeal, means to convince an audience of the author’s credibility or character. An author would use ethos to show to his audience that he is a credible source and is worth listening too. Ethos is the Greek word for “character.” The word “ethic” is derived from ethos. Ethos can be developed by choosing language that is appropriate for the audience and topic (also means choosing proper level of vocabulary), making yourself sound fair or unbiased, introducing your expertise or pedigree, and by using correct grammar and syntax.