Jealousy is the great exaggerator.

The aphorism frames jealousy as a distorting lens: once suspicion takes hold, it inflates small ambiguities into “proof,” magnifies harmless interactions into betrayals, and turns ordinary uncertainties into certainties of wrongdoing. Calling jealousy an “exaggerator” highlights its cognitive mechanism—selective attention, over-interpretation, and catastrophic inference—rather than treating it merely as a feeling. The line also implies a moral warning: jealousy does not simply respond to reality but actively manufactures a more dramatic, more threatening version of it, thereby justifying rash actions and corroding trust. In Schiller’s moral-psychological vein, it suggests that passions can falsify judgment and make people complicit in their own misery.