Ethos,pathos, and logos are all apart of rhetorical triangle. They all connect to each other and are very important when it comes to persuasive writing. They all naturally work together well. Most of us have used it unknowingly as well. In order to fully understand the rhetor we can use ethos, pathos, and logos. Using those contents we can understand who wrote it, why she wrote it, and who the audience is. Therefore I agree that it is important to fully understand it.