How do I take a partial quotation that ends with a question mark (but not within my quote)?

I am in the process of writing a paper on Shakespeare's Macbeth, and I want to take a quotation from the following passage:

Which thou esteem'st the ornament of life
And live a coward in thine on esteem,
Letting "I dare not" wait upon "I would"
Like the poor cat i' the adage?

However I only want to take the first three lines of the passage:

It is written, "Which thou esteem'st the ornament of life / And live a coward in thine on esteem, / Letting "I dare not" wait upon "I would"...

How should I punctuate the end (...)?

You could punctuate thus:

'Which thou esteem'st the ornament of life / And live in a coward in thine on esteem, / Letting "I dare not" wait upon "I would" . . . ?'

It is then obvious that you are quoting a question, but not including the entire sentence.