1. Aquinas 1996a. Scriptum super Sententiis. In Thomae Aquinatis Opera omnia cum hypertextibus in CD-ROM, ed. R. Busa, 2nd ed. Stuttgart: Frommann-Holzboog.
2. Aquinas 1996b. Summa Theologiae. In Thomae Aquinatis Opera omnia cum hypertextibus in CD-ROM, ed. R. Busa, 2nd ed. Stuttgart: Frommann-Holzboog.
3. Aquinas 1996c. De potentia. In Thomae Aquinatis Opera omnia cum hypertextibus in CD-ROM, ed. R. Busa, 2nd ed. Stuttgart: Frommann-Holzboog.
4. Aristotle 1980. The Metaphysics. Trans. H. Tredennick. Cambridge, Massachusetts: Harvard University Press.
5. The End of Personhood