My lord, I see you’re moved

Iago
My lord, I see you're moved.
Othello
No, not much moved.
I do not think but Desdemona's honest.
Iago
Long live she so! And long live you to think so!
Othello
And yet, how nature erring from itself—
Iago
Ay, there's the point. As, to be bold with you,
Not to affect many proposèd matches
Of her own clime, complexion, and degree,
Whereto we see in all things nature tends—
Foh! One may smell in such a will most rank,
Foul disproportion, thoughts unnatural—
But pardon me—I do not in position
Distinctly speak of her, though I may fear
Her will, recoiling to her better judgment,
May fall to match you with her country forms
And happily repent.
Othello
Farewell, farewell!
If more thou dost perceive, let me know more.
Set on thy wife to observe. Leave me, Iago.
Iago, beginning to exit
My lord, I take my leave.
Othello
Why did I marry? This honest creature doubtless
Sees and knows more, much more, than he unfolds.
Iago, returning
My lord, I would I might entreat your Honor
To scan this thing no farther. Leave it to time.
Although 'tis 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 meantime,
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 Honor.
Othello
Fear not my government.
Iago
I once more take my leave. He exits.
Othello
This fellow's of exceeding honesty,
And knows all qualities with a learnèd spirit
Of human dealings. If I do prove her haggard,
Though that her jesses were my dear heartstrings,
I'd whistle her off and let her down the wind
To prey at fortune. Haply, for I am black
And have not those soft parts of conversation
That chamberers have, or for I am declined
Into the vale of years—yet that's not much—
She's gone, I am abused, and my relief
Must be to loathe her. O curse of marriage,
That we can call these delicate creatures ours
And not their appetites! I had rather be a toad
And live upon the vapor of a dungeon
Than keep a corner in the thing I love
For others' uses. Yet 'tis the plague of great ones;
Prerogatived are they less than the base.
‘Tis destiny unshunnable, like death.
Even then this forkèd plague is fated to us
When we do quicken. Look where she comes.

Enter Desdemona and Emilia