--- title: Popes Leo XIII & XIV, Catholic Social Thought & the Challenges of Modernity description: Pope Leo XIII (1878–1903) and the fictional/prospective Pope Leo XIV represent a continuum of Catholic Social Teaching (CST) designed to address the challenges of modernity, specifically technological revolutions and worker dignity. image: https://lightandtruth.udallas.edu/hubfs/Light%20and%20Truth%20Assets/Scott%20Roniger%20Keyenote%20thumb.jpg --- ![](https://www.facebook.com/tr?id=1217303775117752&ev=PageView&noscript=1) # Popes Leo XIII & XIV, Catholic Social Thought & the Challenges of Modernity October 29, 2025   /   By  Lectures at UDallas ![Container-1](https://24176245.fs1.hubspotusercontent-na1.net/hub/24176245/hubfs/Theme_2026/Container-1.png?width=100&height=12&name=Container-1.png) ![](https://lightandtruth.udallas.edu/hubfs/Light%20and%20Truth%20Assets/Scott%20Roniger%20Keyenote%20thumb.jpg) - [Culture](https://lightandtruth.udallas.edu/blog/tag/culture) - [Philosophy](https://lightandtruth.udallas.edu/blog/tag/philosophy) - [Leadership](https://lightandtruth.udallas.edu/blog/tag/leadership) - [Ethics](https://lightandtruth.udallas.edu/blog/tag/ethics) - [Catholic](https://lightandtruth.udallas.edu/blog/tag/catholic) - [Politics](https://lightandtruth.udallas.edu/blog/tag/politics) Share: - - - Join UD's JPII Fellow, Dr. Ryan Anderson, at the Pope St. John Paul II Conference, where he and guests will explore the teachings of Pope Leo XIII, including Rerum Novarum and Catholic Social Teaching.    This keynote address features Dr. Scott Roniger Associate Professor of Philosophy and Director of the Lonergan Center for Catholic Faith and Culture at Loyola Marymount University. 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