Aristotle's Rhetoric has had an enormous influence on the development of the art of rhetoric. Not only authors writing in the peripatetic tradition but also the famous Roman teachers of rhetoric such as Cicero and Quintilian frequently used elements stemming from the Aristotelian doctrine. Nevertheless these authors were interested neither in an authentic interpretation of the Aristotelian works nor in the philosophical sources and backgrounds of the vocabulary that Aristotle had introduced to rhetorical theory.