to resist persuasive messages (pitch
es) is to strip all adjective
s and most adverbs
completely from the text; omit the least verifiable
components of the argument
you're being pitched.
"Read" only the verbs, their subjects and objects, and the conjunctions and prepositions that stitch them up. This is like Strunk's hammer on subjectivity, and shows more clearly the pitch's center of gravity.
If facts are being presented then the center of gravity has weight. On the other hand, if trimming the adjectives deflates the argument, then its force was in its editorial description rather than its relevant facts.
This was part of the concept underlying David Ogilvy's philosophy of advertising, and the reason Ogilvy & Mather tended to produce ads dense with carefully reasoned text rather than photos of celebrities, kids and pretty young women.