1. Aquinas, T. (1993). Thomas Aquinas Selected Philosophical Writings (T. McDermott, Trans.). Oxford University Press.
2. Augros, M. (2007). The Immortal in You—How Human Nature Is More Than Science Can Say. Ignatio Press.
3. Brown, C. (2005). Aquinas and the Ship of Theseus: Solving Puzzles about Material Objects (pp. 120-124). Continuum International Publishing.
4. Souls, Ships, and Substances
5. Aquinas on Human Nature and the Possibility of Bodiless Existence