Aquinas' Epistemology with Reflections from a Friar-Medical Doctor - Fr. Chris Gault, O.P.

Fr. Chris Gault, O.P. lays out Aquinas's epistemology of moderate realism, in which all knowledge begins with the senses and the agent intellect abstracts universal forms from phantasms, and defends it against skepticism, ancient and modern, including the claim that artificial intelligence cannot truly know.

This lecture was given on July 18th, 2026, at Glencomeragh House.

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About the Speaker:

Fr. Chris Vincent Gault, OP, was born and raised in Belfast in the north of Ireland, where he studied medicine at Queen's University Belfast. Qualifying as a doctor in 2013, he began to train as an emergency physician, before leaving medicine after 3 years to enter the Irish Province of the Order of Preachers. Ordained as a Dominican priest in July 2024, and after having completed his studies at the Pontifical University of St. Thomas Aquinas (Angelicum) in Rome, he was assigned to the convent of St. Mary of the Isles in Cork, where he now resides and ministers, particularly to the youth and young adults of that city.

Keywords: Agent Intellect, Aquinas, Blindsight, Chinese Room Argument, Epistemology, Moderate Realism, Phantasm, Sensory Experience, Universals, Visual Agnosia