Date of Award

Spring 1-1-2011

Document Type

Thesis

Degree Name

Master of Arts (MA)

Department

Philosophy

First Advisor

Robert Pasnau

Second Advisor

Mitzi Lee

Third Advisor

Chris Heathwood

Abstract

St. Thomas Aquinas, among others, adopted the following metaethical thesis: ‘being’ and ‘good’ are the same in reference and differ only in conceptual content. In the first chapter of this work, I exposit and defend this thesis. In the second chapter, I apply the thesis to the case of substances and argue that the thesis provides a compelling account of what it is to be a good x, where x is a substance. In the third and final chapter, I consider how the thesis, if true, might structure normative ethical debates.

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