"Humanly speaking all, all lost, quite lost."
With Malone, I read are for the second 'all.' In the same way we have "sir, sir," in All's Well, v. 2.
"O good my lord, give me thy favour still."
"Let us alone,
And do the murder first."
With Theobald I read 'Let us along,' which connects so well with what follows: we have this very expression in Wint. Tale, v. 2; and see on L. L. L. iv. 3. Hanmer read 'Let it alone.'
"Make us strange stuff ..."