Tools of Influence: Excerpts from influential speeches that demonstrate powerful rhetorical devices

I’ve made bites at the how-to-persuade-apple. For example, here, I offer general advice, and here , I offer feedback on a job application letter.
 
In my PsychologyToday.com article today, I offer another approach. From 200 of the most influential speeches of modern times, I selected 11 excerpts that brilliantly illustrate a powerful rhetorical device.