The forehead declares, 'Reason sits firm and holds the reins, and she will not let the feelings burst away and hurry her to wild chasms. The passions may rage furiously, like true heathens, as they are; and the desires may imagine all sorts of vain things: but judgment shall still have the last word in every argument, and the casting vote in every decision.'
Chapter 19 · Edward Rochester
Context
Continuing his reading of Jane's forehead, the disguised Rochester describes a mind in which Reason controls the Passions, ensuring that judgment will always triumph over desire no matter how violently emotions rage.
Analysis
Rochester personifies Reason as a female charioteer holding 'the reins,' a gendered image that aligns rationality with feminine self-governance in pointed contrast to the 'heathens' and 'wild chasms' of unleashed feeling. The simile 'like true heathens, as they are' frames passion as inherently pagan and uncivilized, a word choice that reveals the Christian moral framework Jane uses to discipline herself. By having Reason cast 'the casting vote,' Rochester presents Jane's inner life as a perpetual debate in which desire can speak but never win—an accurate portrait, but also one that unsettles him.
Essay Tip
Support a thesis that Rochester is both attracted to and threatened by Jane's self-discipline—this passage shows him reading her Reason as an obstacle he will need to overwhelm, setting up the novel's central tension between Jane's moral autonomy and Rochester's desire to possess her entirely.