500
My lord, I would I might entreat
your honour
To scan this thing no further; leave it to time:
Though it be fit that Cassio have his place,
For sure, he fills it up with great ability,
Yet, if you please to hold him off awhile,
You shall by that perceive him and his means:
Note, if your lady strain his entertainment
With any strong or vehement importunity;
Much will be seen in that. In the mean time,
Let me be thought too busy in my fears--
As worthy cause I have to fear I am--
And hold her free, I do beseech your honour.
Iago says this to Othello while they are arguing about how he believes that Cassio and Desdemona are likely innocent and that Othello shouldn't do anything too rash. And of course that was just a lie.