I’ll be wise hereafter
And seek for grace.

– William Shakespeare

The Tempest, Act 5, Scene 1. This passage is from the fuller quote: "I’ll be wise hereafter And seek for grace. What a thrice-double ass Was I, to take this drunkard for a god And worship this dull fool!" As he leaves the play, Caliban claims to have learned a lesson and be wiser, recognizing his mistake in having admired and given his allegiance to his new master Stephano. But we don’t actually know what happens to him after that. Did he accompany Prospero to Milan? Or did he remain on the island as its ruler? Did Prospero’s gain his freedom from Prospero? All this is unclear as Shakespeare provides no resolution like he did in the case of the other major characters, he keeps us guessing to this day.