A rhetorical flourish is any deliberate ornament added to a speech that goes beyond plain exposition: a striking image, a tricolon ("of the people, by the people, for the people"), an anaphora, a classical allusion, or a sweeping moral appeal. The purpose is not to convey new information but to fix an argument in the audience's memory, signal command of the floor, and stir emotional or moral assent.
In Model UN and parliamentary debate, flourishes are most useful in opening statements, closing speeches before a vote, and moderated caucus interventions where a delegate has only 30–90 seconds to be remembered. A well-placed flourish—naming a specific civilian, invoking a treaty's preamble, or citing a historical parallel—can elevate an otherwise procedural intervention. Overused, it tips into grandstanding and undermines credibility with experienced chairs who reward substance.
Classical rhetoric, systematised by Aristotle in the Rhetoric and later by Cicero and Quintilian, treats flourishes as part of elocutio (style), one of the five canons alongside invention, arrangement, memory, and delivery. Modern diplomatic speech retains many of these devices: think of Adlai Stevenson's "until hell freezes over" at the UN Security Council in October 1962, or Winston Churchill's habitual use of antithesis and triadic structure.
Best practice for delegates:
- Anchor the flourish to a fact. A metaphor that is not tied to a clause, statistic, or named actor sounds hollow.
- Match register to forum. A General Assembly plenary tolerates loftier language than a technical committee on budget lines.
- Use sparingly. One memorable line per speech is usually enough; chains of flourishes read as theatrical.
- Avoid clichés. "We stand at a crossroads" and "the eyes of history are upon us" have lost their force through repetition.
A flourish is a tool of persuasion, not a substitute for argument.
Example
In his October 1962 UN Security Council exchange with Soviet Ambassador Valerian Zorin during the Cuban Missile Crisis, US Ambassador Adlai Stevenson delivered the famous flourish that he was prepared to wait "until hell freezes over" for an answer.
Frequently asked questions
In moderation, yes. Chairs and experienced delegates reward speeches that combine substantive policy content with one or two memorable stylistic touches, but penalise speeches that are all style and no substance.
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