‘I follow him to serve my turn upon him.’ (1.1.)
‘I ‘twixt my sheets.’ (1.3.)
‘Strangle her in bed, even the bed she hath contaminated.’ (4.1.)
Here Iago orchestrates even the way in which Desdemona will be killed. The quote shows Iago’s desire to control every aspect of how his plan will unfold, and also his sinister sense of poetic justice. He argues that since Desdemona has committed her crimes in bed, by sleeping with other men, she should also die in bed. The quote also reinforces the fact that Iago has complete control over Othello at this point, since Othello immediately agrees to the gruesome plan.
‘beast with two backs’ (1.1)
‘ha I like not that’ (3.3)
‘from this time forward, I will never speak a word’ (5.2)
the structural significance of the last line is important because this is Iago’s last attempt at trying to control knowledge of the audience and characters, he denies the audience an explanation.
‘honest Iago.’
He has risen through the ranks in the army by merit and achievement, and Othello, whose military judgment is excellent, has taken him as ancient (captain) because of his qualities.
‘I am not what I am’