Undergraduate Honors Theses

Thesis Defended

Fall 2015

Document Type


Type of Thesis

Departmental Honors



First Advisor

Robert Pasnau

Second Advisor

Dominic Bailey

Third Advisor

Andrew Cain


In this thesis, I am examining the philosophy of Augustine from his work On the Trinity, to the earlier work of Marius Victorinus’ Theological Treatise on the Trinity, looking for conceptual similarities in their philosophy. I contend that Augustine used the argument form developed by Marius Victorinus, specifically the example he uses of “esse, vivere, intelligere” to explain how three substances can exists as one substance without paradox or contradiction; this then was understood and re-worked by Augustine to explain the image of God in humanity found in the human mind.