Rhetoric

Aristotle is generally credited with developing the basics of the system of rhetoric that "thereafter served as its touchstone", influencing the development of rhetorical theory from ancient through modern times. The Rhetoric is regarded by most rhetoricians as "the most important single work on persuasion ever written." Gross and Walzer concur, indicating that, just as Alfred North Whitehead considered all Western philosophy a footnote to Plato, "all subsequent rhetorical theory is but a series of responses to issues raised" by Aristotle's Rhetoric. This is largely a reflection of disciplinary divisions, dating back to Peter Ramus' attacks on Aristotelian rhetoric in the late 16th century and continuing to the present.

Like the other works of Aristotle that have survived from antiquity, the Rhetoric seems not to have been intended for publication, being instead a collection of his students' notes in response to his lectures. The treatise shows the development of Aristotle's thought through two different periods while he was in Athens, and illustrates Aristotle's expansion of the study of rhetoric beyond Plato's early criticism of it in the Gorgias (c. 386 BC) as immoral, dangerous, and unworthy of serious study. Plato's final dialogue on rhetoric, the Phaedrus (c. 370 BC), offered a more moderate view of rhetoric, acknowledging its value in the hands of a true philosopher (the "midwife of the soul") for "winning the soul through discourse." This dialogue offered Aristotle, first a student and then a teacher at Plato's Academy, a more positive starting point for the development of rhetoric as an art worthy of systematic, scientific study.

The Rhetoric was developed by Aristotle during two periods when he was in Athens, the first, from 367–347 BCE (when he was seconded to Plato in the Academy); and the second, from 335–322 BCE (when he was running his own school, the Lyceum).

The study of rhetoric was contested in classical Greece: on the one side were the sophists, and on the other side were Socrates, Plato, and Aristotle. The trio saw rhetoric and poetry as tools that were too often used to manipulate others by appealing to emotion and omitting facts. They particularly accused the sophists, including Gorgias and Isocrates, of this manipulation. Plato, particularly, laid the blame for the arrest and the death of Socrates at the feet of sophistical rhetoric. In stark contrast to the emotional rhetoric and poetry of the sophists was a rhetoric grounded in philosophy and the pursuit of enlightenment.

One of the most important contributions of Aristotle's approach was that he identified rhetoric as one of the three key elements—along with logic and dialectic—of philosophy. Indeed, the first line of the Rhetoric is "Rhetoric is a counterpart (antistrophe) of dialectic". According to Aristotle, logic is concerned with reasoning to reach scientific certainty while dialectic and rhetoric are concerned with probability and, thus, are the branches of philosophy that are best suited to human affairs. Dialectic is a tool for philosophical debate; it is a means for skilled audiences to test probable knowledge in order to learn. Conversely, rhetoric is a tool for practical debate; it is a means for persuading a general audience using probable knowledge to resolve practical issues. Dialectic and rhetoric create a partnership for a system of persuasion based on knowledge instead of upon manipulation and omission.