On December 6, 1273, Thomas Aquinas finished Mass in a chapel in Naples, and something happened to him that he never explained. By the next day, the greatest theologian of the Middle Ages had put down his pen and refused to pick it up again, leaving his life's work, the Summa Theologiae, unfinished.

This video looks at what his secretary Reginald recorded about that moment, and uses it as the doorway into something Aquinas spent his life writing about: the three hidden shapes of pride that disguise themselves as holiness. Drawing on his Summa, Saint Paul's letter to the Corinthians, and Jesus's parable of the Pharisee and the tax collector in Luke 18, we look at how a person can do everything right on paper and still walk away from God, and how Aquinas's own life, from refusing a bishopric to his habit of arguing the other side's position first, modeled the opposite.

SOURCES:

1. Summa Theologiae, Thomas Aquinas (on pride, drawing on Pope Gregory the Great).
2. 1 Corinthians 4:7.
3. Luke 18:9-14 (Parable of the Pharisee and the Tax Collector).
4. Reginald of Piperno's account of Aquinas's final months (reported testimony).
5. Early biographical accounts of Aquinas's life, including William of Tocco.

DISCLAIMER:
This video reflects Catholic tradition and is made for educational and spiritual reflection only. It is not theological instruction or pastoral counseling. Viewers are encouraged to read Aquinas's own work and the primary biographical sources directly for fuller context.