Abstract
Abstract
Treatises on rhetoric since antiquity have illustrated how to amplify passages but give scant attention to strategies for when or why. Dealing mostly with isolated passages, they ignore the effect of amplification on amplitude, the proportions of units that give a text its overall shape. This article considers the relationship between length and importance, sets criteria for a method of mapping amplitude, and applies the method to the Gettysburg addresses of Abraham Lincoln and Edward Everett. Though their shapes differ, each address balances crucial sections against each other. In Lincoln’s case, a more symmetrical shape emerged by accident as he delivered the speech. Then, when editing the official version, he decided to preserve the new shape. Everett’s address is shown to have better proportions than critics assume. Mapping amplitude sheds light on authors’ strategies for dealing with their kairos.