Canonum De Ius Positivum
Canons of Positive Law
VI. Argument
6.4 Rhetoric
Article 207 - Pathos
Canon 2701 (link)
Canon 2702 (link)
Pathos is the third of three "intrinsic" methods and qualities of a speaker in using Rhetoric as it considered inherent and inseparable with the perceived identity of the speaker.
Canon 2703 (link)
Pathos is a key method of influence through Rhetoric as audiences prefer to hear from people with whom they empathize as having emotional integrity. Therefore, the more authentically and emotionally engaged a speaker is perceived, potentially the more influential.