University of St. Thomas - Houston, TX - Educating Leaders of Faith and Character
Dr. Rollen Edward Houser


Dr. Rollen Edward Houser
Dr. Rollen E. HouserCenter for Thomistic Studies

Bishop Wendelin J. Nold Chair in Graduate Philosophy


  • Ph.D., University of Toronto, 1981
  • M.S.L, Pontifical Institute of Mediaeval Studies, 1976
  • M.A., University of Toronto,1976
  • B.A., University of Texas, 1968



  • 1987-present University of St. Thomas, Houston, Texas, and the Center for Thomistic Studies
  • 2009-present Bishop Wendelin J. Nold Professor of Graduate Philosophy
  • 1987-2002 Associate Professor of Philosophy.
  • 2002-2009 Professor of Philosophy.
  • 1976-1987 Niagara University, Niagara Falls, New York
  • 1976-1981 Assistant Professor of Philosophy.
  • 1981-1987 Associate Professor of Philosophy.

Recent Publications:

  • "Philip the Chancellor," in Lagerlund, Henrik, ed., Encyclopedia of Medieval Philosophy (Heidelberg: Springer, 2010).
  • Review of Ide M. Ni Riain, trans., Denis the Carthusian, Ecstatic Doctor, Virtues and Vices, (Dublin: Four Courts Press, 2009), for Journal of the History of Philosophy 48 (2010) 523-4. 

Recent Lectures & Papers:

  • "Dionysius the Carthusian (1402–1472) on the Layman’s Journey from Vice to Virtue," South-Central Renaissance Association, Corpus Christi, TX, 20 March 2010. 
  • "Aquinas’s Use of Averroes and Avicenna in his De principiis naturae." Conference for the international working group, Aquinas and the Arabs / Thomas d’Aquin et ses sources arabes, 11 September 2010, Center for Thomistic Studies, University of St. Thomas, Houston. 
  • "Avicenna and Aquinas’s De prin cipiis naturae, c. 1-3," Paris, Conference of Aquinas and the Arabs, CNRS, 20 May 2011.

Teaching Areas

Philosophy:  Aristotelian Logic; Symbolic Logic; Introduction to Philosophy; Philosophy of the Human Person; Metaphysics; Ethics; Ancient Philosophy; Medieval Philosophy; Modern Philosophy; Epistemology; Aquinas: Summa of Theology; Aquinas: Intellectual Growth; Aquinas: Cardinal Virtues; Aristotle; Islamic Philosophy.
Interdisciplinary:  Industrial Revolution, Origins and Responses, with G.R. Carpenter, History, Niagara; Man in the Middle Ages:  Sinners to Saints, Popes to Peasants, with R. Nicol and M.C. Sommers, Niagara; Arguing Your Case (Rhetoric and Logic), with M.J. Tumulty, Niagara;  The Tribe and the City (Hebrews and Greeks: first course in the Honors Program), with R. Yankow, P. Hahn, St. Thomas. From Empire to Christendom (Rome and the Early Middle Ages: second course in the Honors Program), with R. Smith, I. Kelter, St. Thomas. 

Philosophy:  M.A. (Niagara): Aristotelian Scientific Method; Opuscula of St. Thomas; Aristotle’s Physics.
PH.D. (Thomistic Center):  Plato’s Laws and Related Dialogues; Plato: Middle Dialogues (Protagoras, Gorgias, Republic; Plato’s Phaedo and Aristotle’s De anima; Aristotle’s Nicomachean Ethics; Aristotle’s Metaphysics; Aristotle’s Posterior Analytics; Metaphysics in the Aristotelian Tradition; Islamic Background to Aquinas; Existence of God in Medieval Neoplatonism; Philosophical Theology and the Existence of God: Albert, Bonaventure, Aquinas; The Cardinal Virtues: Aquinas, Albert, Philip the Chancellor; Metaphysics: Aristotle, Avicenna, Aquinas: Aquinas: Human Person in ST; Aquinas: Ethical Principles in ST 1-2.
Master of Liberal Arts:  Medieval Ways of Life.

Research Areas

  • Medieval Philosophy
  • Islamic Philosophy
  • Metaphysics
  • Virtue Theory

Curriculum Vitae