In this play we have seen many displays of passion in both love and evil. The love expressed between the two lovers Othello and Desdemona and the evil expressed by Iago and his villainy towards Cassio and the aggregate happiness of the play. Iago even plants the seed of jealousy into the epic hero of this play, Othello. Othello is impact by this planted seed both negatively and positively. Othello is positively impacted because he believes what Iago says and overall sees that he must thank him for showing him the error of his ways by promoting him to lieutenant (cough* brown noser cough*). The negative impact is what ultimately drives Othello to commit some the most outrageous acts of passion I have ever seen. This negative impact is the madness that Othello first controls, but later by the fourth act has been consumed by.
The madness that Othello is thrived from his jealousy. The jealousy that Iago planted, but this does not mean Iago is for all of Othello’s madness. Othello, although originally implanted by the jealousy he has towards Cassio and his proposed affair with his own wife Othello, has fueled his own madness. He has acted rashly and unethically as a military officer and even as a human being. Whenever Othello was told some piece of questionable material, either by Iago or anyone else, he did not hesitate to pester and speak to his wife. Not once did Othello question the material he was given and ask himself if he truly believed his wife had done something so heinous and evil. Therefore Othello may have began as the madness that Iago planted in his mind, but he is now embracing this madness and fueling it himself with rage and hatred.
When I read this topic for a blog post I came up with this type of scenario: Imagine that Iago is a kid at the top of a hill and Othello is a child on a bike that is also at the top of the hill. Iago may give the initial push to Othello and cause the beginning of his descent, but Othello is the one who can stop this whenever he wants. Othello can question the material he is presented with and put forth his own argument. but he does not. He as a sentient being fuels his own madness with his rage, jealousy, and hatred towards his wife Desdemona and Cassio.