Anger ventilated often hurries toward forgiveness; and concealed often hardens into revenge.

Bulwer-Lytton contrasts two emotional trajectories: anger that is expressed versus anger that is suppressed. When “ventilated,” anger is treated as a passing storm—spoken, acknowledged, and therefore capable of dissipating into reconciliation. When concealed, it becomes a private, self-reinforcing narrative that can calcify into resentment and ultimately revenge. The aphorism reflects a 19th-century moral-psychological insight common in Bulwer-Lytton’s fiction: passions are dangerous not only in their excess but in their secrecy, because hidden feelings invite brooding, misinterpretation, and escalation. The line implicitly recommends frankness and timely expression as social and ethical safeguards.