This same principle will procure emphasis in a speech. If you have a point that you want to bring home to your audience forcefully, make a sudden and great change of tempo, and they will be powerless to keep from paying attention to that point. Recently the present writer saw a play in which these lines were spoken:
"I don't want you to forget what I said. I want you to remember it the longest day you--I don't care if you've got six guns." The part up to the dash was delivered in a very slow tempo, the remainder was named out at lightning speed, as the character who was spoken to drew a revolver. The effect was so emphatic that the lines are remembered six months afterwards, while most of the play has faded from memory. The student who has powers of observation will see this principle applied by all our best actors in their efforts to get emphasis where emphasis is due. But remember that the emotion in the matter must warrant the intensity in the manner, or the effect will be ridiculous. Too many public speakers are impressive over nothing.