
The Thomistic Institute 3 - Transubstantiation Part 2 | Fr. Thomas Joseph White, OP
Apr 21, 2024
Fr. Thomas Joseph White, a Dominican priest, discusses transubstantiation, delving into philosophical terms like substance and accidents. He compares this transformation in the Eucharist to natural transmutation and creation, highlighting the uniqueness of this process.
AI Snips
Chapters
Transcript
Substance Versus Accidents Explained
- Aquinas frames substance as the unified individual being and accidents as measurable properties like quantity, quality, relations, actions, passions, location, time, and position.
- He uses concrete examples (height, skills, gallbladder) to show how accidents differentiate individual humans from shared human nature.
Funny Illustration Of Being One Instantiation
- Fr. White jokes about thinking he's so perfect an instantiation of humanity that if he died humanity would disappear to illustrate individual instantiation of nature.
- The humorous self-deprecating line elicits laughter and clarifies Plato vs Aristotle on forms and individuals.
Accidents Remain While Substance Changes
- In the Eucharist the bread and wine's accidents remain while their substance becomes Christ's body and blood, so we perceive bread but should affirm the real presence.
- Fr. White stresses pointing to the host: sensibly bread properties persist though the underlying substance is Christ.

