I just finished the first essay for my master’s degree, “Nature and Spirit in the Thought of Thomas Aquinas.” Here’s the abstract:
In this essay I am concerned with defending two theses. In the first part I will argue that, for Thomas Aquinas, humans necessarily lack the natural capacity to reach our final telos in beatific vision. This deep human problem is intrinsic to Aquinas’ anthropology and is, therefore, logically prior prelapsarian. Then in the second part I will argue that both law and grace, (especially the theological virtues), which together for Aquinas constitute the solution to the problem, can rightly be labeled Spirit. The outcome is that law and virtue, which traditionally have been considered keystones of ethical theory, are found properly under the rubric of soteriology and pneumatology.
You can read the entire essay here.