Thank you for subscribing to Annotated Thomist...check back each day for a new section of St. Thomas' corpus, annotated and summarized. (FREE TRIAL FOR NEW SUBSCRIBERS!!!)
AT is also available to donors of $10 or more on Patreon or SubscribeStar along with all of the other benefits (daily bonus videos, bonus articles, PDFs, etc.)
If you need more personalized help reading the Summa, I am available for 1-on-1 sessions, here.
In the last two articles, St. Thomas goes on to cover magnitude and multitude. Think of the former as the "greatness" of one individual (e.g., an infinitely long line). Think of the former as the "number" of many individuals (e.g., an infinite number of lines).
Due to the complexity of this topic, I have chosen to combine the two article and provide prose explanation rather than direct commentary.