The Thomistic Institute

Prof. Ryan Miller offers an introductory overview of the foundational terminology of Thomistic philosophy of nature — potency and act, the four causes, per se versus per accidens, the categories of substance, accident, and relation, and nature versus instrument — illustrating each distinction with modern scientific analogies and everyday examples like the conductor, combustion, phonemes, ionization, model species.

This lecture was given on July 16th, 2026, at Dominican House of Studies.

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About the Speaker:

Professor Ryan Miller is Core Fellow at the University of St Thomas in Houston and formerly Swiss National Science Foundation Doc.CH Fellow at the University of Geneva, working on Aristotelian approaches to the metaphysics of emergence in physical and computational systems.

Keywords: Aquinas, Aristotle, Four Causes, Instrument, Nature, Per Accidens, Per Se, Potency and Act, Relation, Substance

Fr. Thomas Davenport argues against the Thomist intuition that artifice obscures nature, showing from Aquinas's account of art and artifacts that artificial forms are accidental forms rooted in the natural active and passive powers of substances, so that scientific instruments and experiments reveal rather than distort the natures they investigate.

This lecture was given on July 18th, 2026, at Dominican House of Studies.

For more information on upcoming events, visit us at thomisticinstitute.org/upcoming-events.

About the Speaker:

Fr. Thomas Davenport, O.P., is professor of philosophy at the Pontifical University of St. Thomas Aquinas in Rome, where he teaches philosophy of nature and epistemology. He has written and spoken on the relationship of faith and science in a variety of venues, including being a main contributor to the Thomistic Evolution project. He was ordained to the priesthood in 2017 and is working on his second PhD in philosophy.

Keywords: Active and Passive Powers, Anjan Chakravarthy, Aquinas, Artificial Form, Assisting Cause, Causal Properties, Nancy Cartwright, Nomological Machine, Scientific Instruments, Semi-Realism

Dr. Sarah E. Maple asks how we acquire an organic vision of beauty that is not merely material or visual, arguing from Aquinas's formal criteria of beauty (proportion, integrity, clarity) and Hans Urs von Balthasar's theological aesthetics (form and splendor, beholding and enrapture) that beauty belongs first to the human person, and that the artist's vocation is grounded in wonder, self-gift, and the sincerity of the body, culminating in a spirituality of artistic service.

This lecture was given on April 21st, 2026, at University of Georgia.

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About the Speaker:

Dr. Sarah E. Maple is a Visiting Research Scholar at Blackfriars Hall, Oxford, within the University’s Centre for Theology and the Arts. She is a painter, theologian, and professor whose work emphasizes the intersection of creative bodily expression, the sacred imagination, and the interior life of the artist. Sarah wrote her doctoral dissertation at the University of St. Andrews’ Institute for Theology, Imagination and the Arts (2017), and read for her MTS at the Pontifical John Paul II Institute. She lectures graduate students in theology and art at both the University of Notre Dame and St Joseph’s Seminary. She is also a Visiting Research Scholar at The William G. Congdon Foundation.

Keywords: Aquinas, Balthasar, Clarity, Formal Criteria Of Beauty, Integrity, John Paul II, Proportion, Self Gift, Theology Of The Body, Wonder

Fr. Gabriel Torretta argues that beauty has become a "forbidden word" for our age due to the effects of German Idealism and Modernism; as a remedy, he proposes a recovery grounded in the Christian metaphysical tradition (Eriugena, Aquinas, Augustine), in which beauty is the attractive power by which God draws all things to himself and which requires an asceticism of the gaze.

This lecture was given on April 28th, 2026, at University of Washington.

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About the Speaker:

Gabriel Torretta, O.P., is assistant professor of Theology at Providence College. He is a church historian whose work focuses on the history of Christian ideas of beauty and art, with a particular focus on the eighth and ninth centuries. He recently completed his PhD at the University of Chicago Divinity School, with a dissertation entitled “‘Beautiful as the Moon’: Discourses of Beauty in the Carolingian Era.” His current projects explore the cultural and theological legacy of ninth-century thinkers like Theodulf of Orléans, Hrabanus Maurus, and John Scottus Eriugena.

Keywords: Adorno, Aquinas, Asceticism Of The Gaze, Augustine, Bouguereau, Divine Beauty, Eriugena, Lucian Freud, Roger Scruton, Worship Of Beauty

Fr. Alan O'Sullivan provides an introduction to Pope Benedict XVI's thought on the "via pulchritudinis" — the way of beauty — arguing that authentic beauty wounds the heart and draws it toward the transcendent Logos, is inseparable from truth, goodness, and prayer, and is indispensable for the Church's liturgy and evangelization against a false, self-absorbing beauty.

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

Support the Thomistic Institute Campus Chapter Program here: truth.thomisticinstitute.org/pod

About the Speaker:

Fr. Alan O’Sullivan, O.P. (Trinity College) is currently the chaplain of Trinity College, Dublin. He is a member of the Irish province of the Order of Preachers who studied at Blackfriars, Oxford.

Keywords: Beauty, Benedict XVI, Dostoevsky, Logos, Magnificat, Paul Claudel, Prayer, Saints, Via Pulchritudinis, Wound Of Beauty