From PsychBlog : The Persuasive Power of Swearing Light swearing at the start or end of a persuasive speech can help influence an audience. Quote: Lack of passion can be fatal to our attempts to persuade others of our point of view. Even if all the right facts are trotted out in an intelligible order, even if the argument is unassailable, when the speaker doesn’t appear to believe it themselves, why should anyone else bother
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The Persuasive Power of Swearing