Iago: O beware my lord,of jealousy! It is the green-ey'd monster which doth mock the meat it feeds on.
Othello: I pray you, in your letters; when you shall these unlucky deeds relate, speak of them as they are. Nothing extenuate, nor set down aught in malice. Then must you speak of one that lov'd not wisely but too well.
Brabantio: Look to her, Moor; have a quick eye to see. She has deceiv'd her father; may do thee!
Othello: [to the Senate] Most, potent, grave and reverend Seigniors; My very noble and approved good masters, That I have ta'en away this old man's daughter, It is most true; true I have married her. The very head and front of my offending Hath this extent, no more.
Iago: I have it; it is engend'red! Hell and night Must bring this monstrous birth to the world's light!
Othello: It is the cause. It is the cause, my soul. Let me not name it to you, you chaste stars. It is the cause.