Charles Joshua Horn

Associate Professor of Philosophy


Ph.D. - Philosophy, University of Kentucky
M.A. - Philosophy, University of Kentucky
B.A. - Morehead State University

Curriculum Vitae (pdf)


Joshua Horn received his Ph.D. and M.A. from the University of Kentucky. He taught at UK, Eastern Kentucky University, and Morehead State University, before coming to UWSP in 2013. He specializes in the history of modern philosophy, especially on metaphysics and epistemology of Spinoza, Leibniz, and Kant. He wrote his dissertation on the nature of compossibility in Leibniz's mature period. In addition to interests in modern philosophy, Joshua maintains an active interest in contemporary analytic metaphysics and philosophy of mind in the fields of modality, causation, free will, philosophy of religion, and cognitive science. 

Select Publications:

“Leibniz and the Labyrinth of Divine Freedom” in The Labyrinths of Leibniz’s Philosophy, Ed. Aleksandra Horowska, Peter Lang Verlag, Forthcoming

The Moral Particularism of The Last of Us”, The Palgrave Handbook of Popular Culture as Philosophy, Palgrave, Forthcoming

Leibniz's Contemporary Modal Theodicy", Quaestiones Disputatae, Vol. 7. No. 2. Catholic University of America Press, 2017. pp. 97-119. 

Leibniz's Ripples: The Continuing Relevance of the Last Great Polymath", Quaestiones Disputatae, Vol. 7. No. 2. Catholic University of America Press 2017. pp. 3-7. 

"Leibniz's Stoic and Spinozistic Justification for Eternal Damnation" in Philosophical Conceptions of Hell, Ed. Benjamin McCraw and Robert Arp, Palgrave Macmillan 2015. pp. 99-112.

"The Individual's Place in Paradise: The Limits, Promise, and Role of Reason in Modern Conceptions of Utopia" in The Individual and Utopia: A Multidisciplinary Study of Humanity and Perfection, Eds. Clint Jones and Cameron Ellis Ashgate Publishing 2014. pp. 11-25

Reviews and Proceedings:
Review of Lloyd Strickland, Proofs of God in Early Modern Europe: An Anthology. Baylor University Press. International Journal for Philosophy of Religion. 85:3 (June 2019) pp. 369—371

Review of Richard Arthur, Monads, Composition, and Force: Ariadnean Threads through Leibniz's Labyrinth. Oxford University Press. Forthcoming, Review of Metaphysics
Review of Jill Graper Hernandez, Early Modern Women and the Problem of Evil: Atrocity and Theodicy. Routledge. International Journal for Philosophy of Religion 83:2 (April 2018) pp. 213—216

Review of Lloyd Strickland, Leibniz on God and Religion: A Reader. Bloomsbury Academic Press. International Journal for Philosophy of Religion 80:3 (December 2016) pp. 321—323

"Leibniz and Impossible Ideas in the Divine Intellect" Vorträge des X. Internationalen Leibniz Kongresses, Ed. Wenchao Li. Hannover: Olms, 2016 Band IV, pp. 539—551
Review of Gonzalo Rodriguez-Pereyra, Leibniz's Principle of Identity of Indiscernibles. Oxford University Press. Journal of the History of Philosophy. 53:4 (October 2015) pp. 787—788

Review of Michael Shapiro, War Crimes, Atrocity, and Justice. Polity Press. Journal for the Study of Peace and Conflict (2015) pp. 155—156

Review of Michael Griffin, Leibniz, God, and Necessity. Cambridge University Press. 

Review of Metaphysics. 66:4 (June 2013) pp. 836—837


Invited Lectures: 
“The Nature of Free Will” Dinner and Discourse Amherst, Wisconsin- August 2019

“Ethics and Conscious Machines” Community Lecture Series Stevens Point, Wisconsin- December 2018

"The Ontological Interpretation of Compossibility" Spinoza-Leibniz Workshop Michigan State University- January 2015

"Leibniz's Theory of Compossibility: Escaping from Spinoza's Precipice" Georgetown College- September 2012

"The Possibility of Possible Worlds: A Story of Radical Philosophers" Morehead State University- February 2012

"Locke's Second Treatise" Morehead State University- October 2009

"Free Will and Moral Responsibility in Video Games" Science Fiction, Popular Cultures
Kona, Hawaii September- 2018

"Can Leibniz's God Love Purely Possible Objects?" Society for Philosophy of Religion
New Orleans, Louisiana March- 2018

"Leibniz and Impossible Ideas in the Divine Intellect" X International Leibniz Congress
Hanover, Germany July- 2016

"Leibniz's Contemporary Modal Theodicy" Continuing Relevance of Leibniz, Franciscan University Steubenville, Ohio- April 2016

"Know Your Role: A Defense of Joel's Abandonment of Humanity in The Last of Us"
Popular Culture Association Seattle, Washington- March 2016

"Leibniz's Stoic and Spinozistic Justification for Eternal Damnation" Society for Philosophy of Religion San Antonio, Texas- February 2016

"The Ontological Interpretation of Compossibility" Spinoza-Leibniz Workshop
Michigan State University- January 2015

University Excellence in Teaching Award, University of Wisconsin Stevens Point, 2019. 

College of Arts and Sciences Certificate of Outstanding Teaching, University of Kentucky 2013

Annual Essay Prize University of Kentucky 2012

“The Ontological Interpretation of Compossibility” Distinguished Teaching Award, University of Kentucky 2012

Faculty All Star Award, Eastern Kentucky University 2012

Contact Information

​Office: ​CCC 418
​Website: Dr. Horn's


PHIL 100: Introduction to Philosophy

PHIL 302: Ethics and Medicine

PHIL 310: Metaphysics

PHIL 315: Philosophy of Law

PHIL 316: Philosophy of Death

PHIL 320: Philosophy of Religion

PHIL 322: Symbolic Logic

PHIL 325: Ancient Greek Philosophy

PHIL 326: 17th & 18th Century Philosophy

PHIL 336: Social and Political Philosophy

PHIL 490: Capstone