Picture of Carl Still

Carl Still President

STM 3002

Research Area(s)

  • Conscience – history of conscience; problem of mistaken conscience
  • Medieval philosophy and theology; Thomas Aquinas
  • Philosophy of religion – problem of knowing God; rationality of faith
  • Philosophy of mind – self-knowledge


  • PhD, University of Toronto
  • MSL, Pontifical Institute of Mediaeval Studies (Toronto)
  • MA, University of Toronto
  • BA (Hons), University of South Carolina

Research Projects

  • Encyclopedia entry on “Conscience” – for the Encyclopedia of Medieval Philosophy, 2nd edition; currently under review
  • The Rationality of Faith: Aquinas and Bonaventure” – paper under revision
  • “Aquinas and the Problem of Mistaken Conscience” – paper under revision 
  • Monograph on Thomas Aquinas on human cognition (in preparation)

Selected Publications and Presentations

  • Turning to the World: Social Justice and the Common Good since Vatican II. McGill-Queen’s University Press. 2018. (co-editor with Gertrude Rompré, STM Director of Mission and Ministry)
  • The Rationality of Faith: Aquinas and Bonaventure”, International Congress on Medieval Studies, Western Michigan University, May 13, 2017
  • “Evil and Moral Failure in De malo”, in Aquinas’s Disputed Questions on Evil, ed. M. V. Dougherty (Cambridge UP, 2016), pp. 146-63
  • “Aquinas on Self-Knowledge and the Individuation of Thought”, International Philosophical Quarterly 54/3 (2014) 253-64
  • “Searching for Thomas amid Thomisms Past and Present”, The Middle Ages in the Modern World conference, University of St. Andrews, St. Andrews, Scotland, June 27, 2013
  • Aquinas: A Guide for the Perplexed, co-authored with Peter S. Eardley. London and New York: Continuum Press, 2010
  • Pico’s Quest for all Knowledge”, in Pico della Mirandola: New Essays, ed. M. V. Dougherty (Cambridge UP, 2008), pp. 179-201
  • Essays in Medieval Philosophy and Theology in Memory of Walter H. Principe, CSB: Fortresses and Launching Pads, ed. J. R. Ginther and C. N. Still (Ashgate, 2005)
  • "Thomas Aquinas on the Assent of Faith”, in Essays in Memory of Walter H. Principe, CSB: Fortresses and Launching Pads (see above), pp. 121-33
  • Being and Thought in Aquinas, ed. J. M. Hackett, W. E. Murnion, and C. N. Still (Global Academic Publishing, 2004)

Teaching Responsibilities


  • PHIL 110.6 [61]: Introduction to Philosophy: The Search for Happiness and Meaning (Terms 1 and 2)
  • PHIL 210.3 [61]: Medieval Philosophy I (Term 1)
  • PHIL 202.3 [62]: Philosophy of Religion (Term 2)
  • PHIL 412 [62]: Philosophy of Thomas Aquinas (Term 2)

Administrative Responsibilities

  • STM Advisory Committee for Catholic Studies, Chair
  • STM Tenure and Promotions Committee