Which propaganda technique uses short phrases to evoke positive feelings?

The correct answer is Glittering Generalities. This propaganda technique relies on emotionally appealing phrases or slogans that convey positive feelings but lack substantive meaning or details. Such phrases often use vague, optimistic terms like "freedom," "justice," or "hope" that carry powerful connotations, aiming to inspire and rally individuals to a cause or ideology without providing concrete evidence to support a claim. By tapping into shared values and emotions, glittering generalities aim to create an association with positive attributes in the minds of the audience, fostering an idealized image of a person, product, or political agenda.

The other options involve different strategies: aphorisms are concise statements that express a general truth or principle, but they may not necessarily evoke emotions or be used as propaganda. Parody involves imitation for comedic or critical effect, which contrasts with the positive, emotion-driven nature of glittering generalities. Chiasmus is a rhetorical device that involves reversing the structure of words in a phrase for emphasis, rather than focusing on evoking feelings through positive phrases.