How we cite our quotes: (Act.Scene.Line)
Quote #10
I'll join with thee [Antonio] in a most just revenge:
The weakest arm is strong enough that strikes
With the swords of justice. (5.2.335-37)
This is Bosola's last-ditch attempt at duty relationships: he tried being the Cardinal's servant, he tried being Ferdinand's servant, and none of it's working. Having realized that he can't work for the bad guys anymore (or, for that matter, the one good guy, now that he's executed the Duchess), Bosola pledges to serve justice by avenging the Duchess, hoping that if he can just choose the right person or principle to serve, he can turn things around.