" Oh hell, Vader, beer is old fashioned, salt is old fashioned. Why do you think magic spells in stories always rhyme? And kids’ jump-rope rituals? And political slogans? The subconscious, the pre-rational part of your brain, thinks a statement must be important if it rhymes. And meter, that drum-beat—imagine how uninspiring the St. Crispin’s Day speech in Henry V would have been if it wasn’t in iambic pentameter! "

― Tim Powers , Salvage and Demolition