Aristotle observed that “youth is easily deceived because it is quick to hope.” Perhaps this is the reason poor Cassio is so gullible. Although he has scored some impressive accomplishments in his military career, he is still young and therefore a target for the older and jaded Iago. Iago plays on Cassio's trust and weakness to get what he wants: revenge. Be sure you understand the character Cassio in Othello by taking our exclusive, interactive quiz. Each of our questions is ranked so that you can understand the level of difficulty and see how your score compares with others who have also taken this quiz. Give it a try!