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Fr. Cajetan Cuddy shows why Aquinas’s Summa Theologiae still matters today, presenting it as a clear, enduring roadmap for understanding Catholic truth, teaching beginners, and thinking more carefully about God, the world, and the human person.

This lecture was given on April 13th, 2026, at Dominican House of Studies.

Apply for the Thomistic Institute Study Abroad program by August 1, 2026. To learn more, visit https://thomisticinstitute.org/study-abroad.

About the Speaker:

Fr. Cajetan Cuddy, O.P. teaches dogmatic and moral theology at the Dominican House of Studies in Washington, D.C. He is General Editor of the ENCYCLOPEDIA OF CATHOLIC THEOLOGY (ect.org). Fr. Cuddy is the author of the book Catholic Theology: An Introduction (ECT Press, 2025). He has written for numerous publications on the philosophy and theology of St. Thomas Aquinas and the Thomist Tradition.

Keywords: beginners, causality, Catholic truth, doctrine, divine truth, pedagogy, sacred teaching, Summa Theologiae, Thomas Aquinas, theology