So it is given in The Contention.
"Myself no joy in nought, but that thou livest."
For 'no' Collier's folio reads to, which seems to be right.
Act IV.
Sc. 1.
"Yes, Poole.—Poole?—Poole, sir Poole, lord Poole."
"Jove sometime went disguis'd, and why not I?"