Gyula Klima
Professor of Philosophy

Philosophy, Fordham University 
109 Collins Hall
Office: (718) 817-3286

Society for Medieval Logic and Metaphysics


1.     Aquinas' Real Distinction and Its Role in a Causal Proof of God's Existence

2.     Aquinas’ Balancing Act: Balancing the Soul Between the Realms of Matter and Pure Spirit

3.     Quine, Wyman, and Buridan: Three Approaches to Ontological Commitment

4.     The Essentialist Nominalism of John Buridan

5.     John Buridan and the Force/Content Distinction

6.     John Buridan on the Acquisition of Simple Substantial Concepts

7.     The Medieval Problem of Universals in the Stanford Encyclopedia of Philosophy

8.     Existence and Reference in Medieval Logic

9.     Ontological Alternatives vs. Alternative Semantics

10.  Ancilla Theologiae vs. Domina Philosophorum: St. Thomas Aquinas, Latin Averroism and the Autonomy of Philosophy

11.  Approaching Natural Language Via Mediaeval Logic

12.  Aquinas' Theory of the Copula

13.  Natural Necessity and Eucharistic Theology in the Late 13th Century

14.  Aquinas on One and Many

15.  St. Anselm's Proof

16.  Buridan's Logic and the Ontology of Modes

17.  Thomas of Sutton on the Nature of the Intellective Soul and the Thomistic Theory of Being


1.     Claude Panaccio: Late Medieval Nominalism and Non-Veridical Concepts (provides a detailed critique of a central argument of my John Buridan), and here is my reply: Demon Skepticism and Non-Veridical Concepts, read at the 2009 APA convention in NYC

2.     Buridan on Substantial Unity and Substantial  Concepts, comments on Henrik Lagerlund: John Buridan's Empiricism and the Knowledge of Substances, read at the UWO Colloquium, October 9, 2009

3.     "Intentional Transfer in Averroes, Indifference of Nature in Avicenna, and the Issue of the Representationalism of Aquinas" comments on Richard Taylor’s and Max Herrera’s papers

4.     "Putting Skeptics in Their Place vs. Stopping Them in Their Tracks", comments by Giorgio Pini and John Greco, and my replies

5.     Reply to Tony Roark on Tarski and Klima: Conceptual Closure in Anselm’s Proof

6.     Contemporary 'Essentialism' vs. Aristotelian Essentialism

7.     Comments on Klima, Contemporary "Essentialism" vs. Aristotelian Essentialism, by Michael Kremer

8.     Reply to Michael Kremer

9.     Nulla virtus cognoscitiva circa proprium obiectum decipitur comments on Robert Pasnau: The Identity of the Knower and the Known

10.  Review of Anthony Kenny: Aquinas on Mind

11.  Comments on Peter King: "The Failure of Ockham’s Nominalism"

12.  "Is Ockham off the hook?"

13.  Reply to David Burrell's comments on "Man = Body + Soul: Aquinas's Arithmetic of Human Nature"

14.  "What can a scholastic do in the 21st century?"

15.  Comments on Jack Zupko: "Philosophy Among the Artistae: A Late-Medieval Picture of the Limits of Rational Inquiry"

16.  "Semantic Complexity and Syntactic Simplicity in Ockham's Mental Language" comments on Yiwei Zheng: "Ockham's Connotation Theory and Ontological Elimination"


1.     Yale Lectures

2.     Cajetanus: De Nominum Analogia (scanned and proofread by Josh Hochschild; if you notice any remaining errors, please bring them to my attention and I'll make the corrections)

3.     Mediaeval Logic and Philosophy

4.     C.S. Lewis Society of California

5.     Stanford Encyclopedia of Philosophy

6.     Aquinas: On the Principles of Nature

7.     Aquinas: On Being and Essence

8.     Episteme Links

9.     Corpus Thomisticum

10.  Greg Klima: Anselm on Free Will (yes, he is my son: ‘Gergely’ is Hungarian for ‘Gregory’)

2019 fall


PHIL 3565-R01 Four Medieval Thinkers – TF10:00 am - 11:15 pm Duane Library 352

PHIL 5100-R01 Logic I – F 12:00 pm - 2:00 pm Collins