I hope I’m posting this in the right category: I’m getting into the Summa because my friend set me on a quest to differentiate between person and nature (we were talking about the Incarnation), and I am wading into the waters of scholastic philosophy without a guide. Does anybody know of some helpful resources to understand the Summa? Commentaries? Websites? There are lots of terms that are confusing and hard to understand. I’m reading it on NewAdvent.org. Free materials would be much appreciated, though if there is a commentary that is within my budget I will consider purchasing.