The Thomistic Institute Podcast
The Thomistic Institute Podcast
The Thomistic Institute exists to promote Catholic truth in our contemporary world by strengthening the intellectual formation of Christians at universities, in the Church, and in the wider public square. The thought of St. Thomas Aquinas, the Universal Doctor of the Church, is our touchstone. The Thomistic Institute Podcast features the lectures and talks from our conferences, campus chapters events, intellectual retreats, livestream events,  and much more.  Founded in 2009, the Thomistic Institute is part of the Pontifical Faculty of the Immaculate Conception at the Dominican House of Studies in Washington, DC.
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Oct. 12, 2026

Can I Ever Tell A Lie? - Fr. Gregory Pine, O.P.

Can I Ever Tell A Lie? - Fr. Gregory Pine, O.P.
The Thomistic Institute Podcast
Can I Ever Tell A Lie? - Fr. Gregory Pine, O.P.
Season 13

Fr. Gregory Pine, O.P. examines the Catholic teaching on truthfulness as an exercise of justice, defining lying as a sin that perverts the faculty of speech and undermines the common good.


This lecture was given on September 10th, 2026, at The Catholic University of America.


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


About the Speaker:


Fr. Gregory Pine, O.P., is an instructor of dogmatic and moral theology at the Dominican House of Studies and the Assistant Director of the Thomistic Institute. He holds a doctorate from the University of Fribourg (Switzerland). He is the author of Prudence: Choose Confidently, Live Boldly and Your Eucharistic Identity: A Sacramental Guide to the Fullness of Life, and is co-author of Credo: An RCIA Program and Marian Consecration with Aquinas.


His writing also appears in Aleteia, Magnificat, and Ascension’s Catholic Classics series. In addition to the TI podcast, he regularly contributes to the podcasts Godsplaining and Pints with Aquinas, and Catholic Classics.


This project/publication was made possible through the support of Grant 63391 from the John Templeton Foundation. The opinions expressed in this publication are those of the speakers and do not necessarily reflect the views of the John Templeton Foundation.


Keywords: Truth, Morals, Virtue, Common Good, Speech