Vico\u27s Principle of \u3cem\u3eSensus Communis\u3c/em\u3e and Forensic Eloquence

As professor of Latin eloquence at the University of Naples, Vico instructed young students in the principles of rhetoric joined with the principles of Roman jurisprudence. Vico understood the art of rhetoric as based in the art of topics and the art of memory. The places of memory reside in the sensus communis, which is the treasure-house of the images and meanings that underlie the life of all nations. Vico, like Shaftesbury, defines sensus communis as communal sense, the shared sensibilities that exist among a given people, and ultimately among the whole human race. These common sensibilities are the source required for the construction of arguments in all types of rhetoric, including forensic rhetoric. For Vico, sensus communis is the key to the interconnection of rhetoric and jurisprudence

Quintilian's Theory of Certainty and Its Afterlife in Early Modern Italy

This dissertation explores how antiquity and some of its early modern admirers understand the notion of certainty, especially as it is theorized in Quintilian's Institutio Oratoria, a first-century educational manual for the aspiring orator that defines certainty in terms of consensus. As part of a larger discussion of argumentative strategies, Quintilian turns to the “nature of all arguments,” which he defines as “reasoning which lends credence to what is doubtful by means of what is certain” (ratio per ea quae certa sunt fidem dubiis adferens: quae natura est omnium argumentorum, V.10.8). These certainties, he later specifies, include not matters of scientific demonstration or objective fact, but the agreements of various communities: the laws of cities, local customs, and other forms of consensus. As the foundation of persuasive rhetoric, these consensus-based certainties situate argumentation as the practice of crafting agreements rather than demonstrating necessary conclusions. Taking as its point of departure Quintilian's novel understanding of certainty, this study looks to some of Quintilian's intellectual forebears as well as his later readers to show how his work is both a nexus of earlier intellectual developments as well as an important inspiration for later accounts of certainty, even into the early modern period. After illustrating in the first chapters of this dissertation how Quintilian's manual incorporates elements from Aristotelian notions of dialectic and rhetoric as well as from Ciceronian skeptical approaches to epistemology, I show how Quintilian's curriculum for the orator shapes the thought of Italian humanists, especially that of Lorenzo Valla (1406–1457), a reformer of scholastic logic and dialectic, and Giambattista Vico (1668–1744), an influential Neapolitan jurist. Adopting Quintilian's rendering of certainty as a matter of agreements and conventions, these later authors elaborate their own novel approaches to various fields—including law, language, and logic—through this ancient understanding of certum. Contrary to modern notions of certainty as objective or scientific fact, Quintilian's humanist readers continue to root this concept in consensus, both within the courtroom and without

Marchili

The art of legislation, that had got lost, is reborn in this book from the classic tradition, which conceives the laws like wise and eloquent civic speeches, and the rhetoric as its basic method, of a such way, that the return to the ancient will be a true progress

How to Legislate with Wisdom and Eloquence. The art of Legislation Reconstructed From the Rhetorical Tradition

The art of legislation, that had got lost, is reborn in this book from the classic tradition, which conceives the laws like wise and eloquent civic speeches, and the rhetoric as its basic method, of a such way, that the return to the ancient will be a true progress

A means-end classification of argumentation schemes

One of the crucial problems of argumentation schemes as illustrated in (Walton, Reed & Macagno 2008) is their practical use for the purpose of analyzing texts and producing arguments. The high number and the lack of a classification criterion make this instrument extremely difficult to apply practically. The purpose of this paper is to analyze the structure of argumentation schemes and outline a possible criterion of classification based on alternative and mutually-exclusive possibilities. Such a criterion is based not on what an argument is, but how it can be understood and interpreted. The schemes are grouped according to an end-means principle, which is strictly bound to the ontological structure of the conclusion and the premises. On this view, a scheme can be selected according to the intended or reconstructed purpose of an argument and the possible strategies that can be used to achieve it