Quintilian, and J.S. Watson. Institutes of Oratory. Edited by Lee Honeycutt, 2010. Kindle Electronic Edition. Book 7 Chapter 10.
Quintilian notes that in definition we work to identify a term while in syllogism we work to identify the overall meaning of an author. Antinomia is a comparison of two laws, seeking to understand and weigh both (Quintilian VII.10.1). The three tasks should be distinguished from one another. Although the differences are subtle, they can be learned. However, it is not possible to give exhaustive directions (Quintilian VII.10.4). Clarity of organization in discussion of any issue is a very important habit (Quintilian VII.10.6). This orderly process is learned on a case by case basis, by daily practice (Quintilian VII.10.8). Quintilian goes on to brief mention of many of the variables within a speaking opportunity. Overall, the chief concern is arrangement of the parts of the argument (Quintilian VII.10.16). Careful observation of the situation serves to order an argument.