Read the given extract carefully and answer the following questions.

OTHELLO

If she be false, O, then heaven mocks itself!

I'll not believe't.

IAGO

How, how, my lord? How do you mean, not believe it?

OTHELLO

I cannot believe that she would betray me.

If I am to believe this, it would mean a world of sorrow.

IAGO

My lord, is it possible you could be mistaken?

OTHELLO

I would like to think so. It would save me a world of pain.