The shirt of Nessus is upon me: teach me, Alcides, thou mine ancestor, thy rage: Let me lodge Lichas on the horns o' the moon; And with those hands, that grasp'd the heaviest club, Subdue my worthiest self.
The poison shirt of Nessus is on me: teach me, Hercules, my ancestor, your anger: Let me place Lichas on the moon's horns; And with the same hands that held the heavy club, Conquer my noblest self.
Mark Antony · Act 4, Scene 12
Antony invokes the myth of Hercules and Nessus—the hero poisoned by his own wife's attempt to save him. The reference acknowledges that Cleopatra has unmanned him, but his rage is turned inward: he grieves the loss of the man he was more than the loss of her. It is the language of tragic self-awareness.