Philosophy Faculty and Staff 

The Department of Philosophy is fortunate to have on its faculty experts in a broad range of philosophical topics. All the traditional areas of philosophy, as well as several major sub-specialties, are represented. The following list of the department members will tell you a bit about us.

Main Office: 110 Fiske Hall; (316) 978-3125

Hours: 8am-noon and 1pm-5pm     

    • Susan Castro , Department Chair. 316-978-7880
    • Brian Hepburn, Undergraduate Coordinator. 316-978-7887
    • Michelle Cronkleton, Administrative Specialist. 316-978-3125 
      • Please welcome Michelle to the department!  Jan McKown now works for the History department instead of having a dual position in Philosophy and History.

Full-Time Faculty


Image of Pat Bondy PATRICK BONDY, Assistant Professor

 Office: 118 Fiske Hall

 Phone: (316) 978-7789

WSU Profile Page

 Ph.D. McMaster University (2012)

 Areas of Interest: Epistemology, Ethics, Metaethics, Metaphysics, Formal and Informal Logic

 Dr. Bondy joined the Department in 2018, having previously held limited term positions as Assistant Professor at Saint Mary’s University, Brandon University, and Trent University, and a Postdoctoral Fellowship at Cornell University. His primary research interests are in contemporary epistemology, including especially the nature and normative force of epistemic reasons and rationality, the epistemic basing relation, epistemic luck, informationally rich testimony, and epistemological problems of peer disagreement and deep disagreement.

Dr. Bondy's website

Cartoonized image of Susan CastroSUSAN CASTRO, Associate Professor and Department Chair

Director, The Academic Center for Biomedical and Health Humanities

Office: 310 Fiske Hall

Phone: (316) 978-7882

WSU Profile Page

B.A. Mathematics--Applied Science, Specialization in Computing, UCLA 1993
Ph.D. Philosophy, UCLA 2006

Dr. Castro's research includes two tracks.

One track follows her graduate work, which is centered in Kant scholarship and informed by current science, with a broadly interdisciplinary aim. She is currently working on a book about Kant's metaethics, specifically how to establish a metaphysics of morals as a non-empirical science.  More broadly in this track, Dr. Castro is interested in the family of phenomena involved in acting or cognizing as if, in a wide range of contexts that include an imagination-centered Kantian theory of autism, algorithmic agency and social justice, Immanuel Kant’s peculiar moral imperative to "act as if your maxim were to become by your will a universal law of nature" (aka Kant's formula of nature), and Japanese philosophy of art (mastery and performance in renga and Noh).   

The second track in Biomedical Humanities derives from taking a philosophical perspective towards her work on the Human Genome Project at UCLA and for the Institute of Molecular Medicine at Thomas Jefferson University. This track includes current issues in philosophy of medicine and cyberethics.  She serves as the founding Director of The Academic Center for Biomedical and Health Humanities (HealthHum), which will support collaboration from campus to community in conjunction with the downtown Wichita Biomedical Campus.

At WSU Professor Castro has taught Late Modern Philosophy, Metaethics, Ethical Theory, Philosophy of Law, Philosophy of Medicine, Philosophy of Feminism, Philosophy of the Arts, Business Ethics, Philosophy of Humor, and Ethics of Big Data.  Dr. Castro is teaching PHIL 354 Ethics and Computers in Fall 2023.  



Brian HepburnBRIAN HEPBURN, Associate Professor and Undergraduate Coordinator

Office: 206 Fiske Hall

Phone: (316) 978-7887



BASc, Physics and Philosophy, 1999, University of Lethbridge. PhD, History and Philosophy of Science, 2007, University of Pittsburgh. Postdoctoral Fellow: University of British Columbia 2007-2011; Aarhus University (Denmark) 2011-2014.

Professor Hepburn's current research interests are scientific explanation, problem solving and innovation, particularly all three in interdisciplinary contexts. His dissertation was on how the concept of equilibrium was used in explanations in 18th century physics, and how this usage was connected to mathematical changes. He continues to work on an historical and philosophical picture of how the descriptive and explanatory resources we have available contribute to the problems we can solve. Especially interesting is when resources from different domains (whether scientific or not) can be integrated in some way. He hopes to use these insights to inform education in Science Literacy and Science Proficiency.

JEFFREY HERSHFIELD, Associate Professor, Director of the Legal Education Accelerated Degree program (LEAD), Director of Masters of Liberal Studies Program

Office: 013 Fiske Hall

Phone: (316) 978-7883

Ph.D. University of Arizona (1992)

 Areas of Interest: Philosophy of Mind, Philosophy of Language, Philosophy of Religion, Philosophy of Sex and Love.

Professor Hershfield is faculty advisor to the Pre-law Student Association and pre-law coordinator for WSU. 

Xiufen Lu with ArtXIUFEN LU, Associate Professor

On sabbatical Fall 2023

Office: 311 Fiske Hall

(316) 978-7889

Ph.D. University of Kansas (2000)

Areas of Interest: Ancient Chinese Philosophy, Social/Political Philosophy, Feminism, and Ethics

Professor Lu earned a B.A. in English from the Beijing Second Institute of Foreign Languages, an M.A. in Philosophy and Women's Studies from Southern Illinois University at Edwardsville, and a Ph.D. in Philosophy from the University of Kansas. Her current research interests include Classical Chinese philosophy, Euro-American feminist theories and their relation to Third World women, and Marxism and its impact on Chinese society.

Susan SterrettSUSAN G. STERRETT, Curtis D. Gridley Distinguished Professor of History and Philosophy of Science

Office: 307 Fiske Hall 

Phone: (316) 978-7885


Areas of Interest: Philosophy of Science, History and Philosophy of Science, Philosophy of Mind, Analytic Philosophy.

Courses taught at WSU include: Women in Tech, Science and the Modern World, Minds and Machines (Honors), Engineering Ethics.

Susan G. Sterrett joined the department in the Fall of 2013, after having taught at Duke University, Carnegie-Mellon University, and the University of Pittsburgh. Professor Sterrett has a B. S. degree in engineering science from Cornell University, and an M.A. in Mathematics, M.A. Philosophy, and Ph.D. in Philosophy from the University of Pittsburgh.


"My area of specialization is philosophy of science, broadly construed. Much of my work concerns models and analogical reasoning in some way, whether in engineering, physics, geophysics, biology (Darwin), or artificial intelligence. One of my contributions has been to argue for the significance of the concepts of physical similarity and physically similar systems, already recognized as important in science and engineering, to philosophy of science. I use both historical and analytical approaches -- often together.

Besides the major works on analogical reasoning, models and modeling: I've published a group of papers on Alan Turing and natural and artificial intelligence. In an advanced undergraduate interdisciplinary textbook on logic, I presented and discussed alternatives to classical logic that are valuable in automated reasoning systems faced with inconsistent information. Overall, I have published widely on the history and philosophy of science, of technology, and of engineering methodologies."

Dr. Sterrett's webpage



Lecturer's office: 011 Fiske
Phone: (316) 978-7793
Note to students: The best way to contact your lecturer is to email them directly.



WSU Profile Page

Ph.D. Purdue (2002)

Areas of Interest: Ethics; Social and Political Philosophy; Philosophy of Law; Eastern thought; and Existentialism and Phenomenology.

Professor Gallegos earned his B.A. in Philosophy at Wichita State University in 1995. He received his M.A. (1998) and Ph.D. (2002) in Philosophy at Purdue University. He has delivered papers at the Hume Society, the Merleau-Ponty Circle, and the World Congress of Philosophy, the last of which was included in the online published proceedings. Outside of the academic arena, he has delivered "Ethical Issues for Bankers" seminars in Austin, Texas and conducted presentations at the Wesley Medical Center's Ethics Committee where he is also community member. Currently, he also teaches organizational behavior, leadership, and corporate governance at another university full time.


Photo of Dr. Matteson


Ph.D. University of Arizona (2011)




My main teaching and research interests focus on understanding what it takes to live well and ethically, together, within complex modern societies. More narrowly, I work primarily within environmental ethics, disability ethics, and the ethics of cities. I have taught courses on normative ethics, meta-ethics, economic markets, philosophy of law, and personal identity. I enjoy living all over the world. I grew up in Kansas, but have spent significant time in South Africa (in high-school), in Senegal (as a Peace Corps Volunteer), in Tucson (for graduate school), in Flagstaff (as a university instructor), and in India (as a university instructor). I currently divide my time between family, teaching, and a textbook project on engineering ethics.



BA in Philosophy, Wichita State University

BA in English Literature, Wichita State University

MA in Philosophy, University of Kansas

I have a BA in Philosophy and a BA in English Literature from Wichita State. I also have an MA in Philosophy from the University of Kansas. I teach Business Ethics online and am interested in applied ethics and philosophy of language.

Photo of Dr. Angela SagerANGELA SAGER

Ph.D. Philosophy, Fordham University (2021)



Areas of Interest: Philosophy of Religion, Continental Philosophy (emphasis in 19th-century European philosophy), Ethics, Ancient Philosophy (including ancient Chinese and Indian traditions), and Japanese Philosophy (particularly the Kyoto School)

Dr. Sager earned her B.A. in Philosophy, B.A. in History, and Minor in Religion at Wichita State University in 2012.  She received her M.A. (2014), M.Phil. (2018), and Ph.D. (2021) in Philosophy from Fordham University.  She will be teaching The Meaning of Philosophy and Business Ethics in the Fall semester of 2021.

Research: Dr. Sager’s research centers currently around the Existential Problem of Evil, or the fact that suffering can render a person’s life meaningless.  Specifically, this research includes: 

  1. Outlining the therapeutic role of śūnyatā, or emptiness (particularly as the Buddhist concept is depicted by Keiji Nishitani), in overcoming the hopelessness of anomy
  2. Illustrating a particular form of existential suffering dubbed as “onryoan corruption” where—like vengeful spirits found in Japanese folklore and horror cinema—a victim perpetuates evil by fixating on her suffering to the point that she lashes out at the world in nihilistic rage
  3. Constructing an ameliorating, philosophical response to evil that stresses the importance of eschatology and theosis (or divinized transformation) in restoring the loss of the world’s order and meaning


Other Associated Faculty

JS JOHNSON-SCHWARTZ, Associate Professor, resigned 2024.

Professor Johnson-Schwartz earned her Ph.D in Philosophy at Wayne State University and joined the department in the fall of 2014 where she taught until 2024. Among her scholarly contributions while at WSU are The Value of Science in Space Exploration (Oxford University Press, 2020), Reclaiming Space: Progressive and Multicultural Visions of Space Exploration (Oxford University Press, 2023), The Ethics of Space Exploration (Springer, 2016). She has also published in: Philosophia Mathematica; Environmental Ethics; Ethics & the Environment; Space Policy; Advances in Space Research; Theology & Science; International Journal of Astrobiology; Futures; Journal of the British Interplanetary Society; and Astropolitics, among others.

ROBERT FELEPPA, Professor Emeritus

Office:116 Fiske Hall

Phone: (316) 978-7881

Ph.D. Washington University (1978)

Areas of Interest: Philosophy of Social Science, Metaethics, and Comparative Philosophy, with current emphasis on the comparison of Asian and Western thought and culture.

Professor Feleppa has been at WSU since 1980. In 2001 he received the college's John R. Barrier Distinguished Teaching Award; in 2004 he was promoted to full Professor. Dr. Feleppa is working on a series of papers in Philosophy of Social Science. Click here for Dr. Feleppa's cv.

A.J. MANDT, Associate Professor Emeritus


Ph.D. Vanderbilt University (1978)

 Areas of Interest: 19th Century Philosophy; Continental Philosophy; Philosophy of Culture

B.A., 1972, Trinity College (Hartford, CT); M.A., 1974, Ph.D., 1978, Vanderbilt University. Professor Mandt's special area of interest is philosophy of culture, a focus which has grown out of his original interests in German Idealism and the history of philosophy. Jay Mandt has recently returned to the department full-time after 14 years as WSU's Honors director. He's the author of numerous articles on topics in German philosophy and philosophy of culture and more recently has written about Honors education. He's a fan of science fiction, and taught an Honors seminar on it several times in recent years. He's also interested in military history, and developed an Honors seminar on that too. He's an avid gardener, and active in his condo community, where he's now supervising the building of a new community clubhouse and learning all sorts of things about architecture, plumbing systems, and swimming pool design.

Prof Radebaugh w grandsonDAY RADEBAUGH, Retired 2023

Office: 001 Fiske Hall

Phone: (316) 978-7890

M.S., Computer Science, George Washington University (1990); Ph.D. Philosophy, The Johns Hopkins University (1983)

Areas of Interest: Philosophy and History of Technology, Philosophy of Mind

Professor Radebaugh received a Ph.D. in Philosophy from the Johns Hopkins University in 1983 and an M.S. in Computer Science from the George Washington University in 1991. He served as Assistant Director of the Information Resources Division at the Federal Reserve Board in Washington, DC until 2001. Areas of specialization include ethical issues in computing and engineering, philosophy and history of technology, and information-processing theories of cognitive behavior.

David Soles at the Rio GrandeDAVID SOLES, Professor Emeritus

Office: 300 Fiske Hall

Phone: (316) 978-7886

Ph.D. The Johns Hopkins University (1977)

Areas of Interest: History of Philosophy, with emphasis in Epistemology

Professor David Soles received a BA in Philosophy from the University of Pittsburgh and a Ph.D. in Philosophy from the Johns Hopkins University. His primary areas of research and teaching are in the History of Philosophy, especially Modern European and Classical Chinese Philosophy. He has published numerous articles in the areas of Early Modern Philosophy and Classical Chinese Philosophy, and is currently working on a book project on Locke. He has received the Mortar Board Educator Appreciation Award, the George A. Lewis Teaching Award, the John R. Barrier Distinguished Teaching Award, The Wichita State University Leadership in the Advancement of Teaching Award, the Wichita State University Excellence in Teaching Award, and The Presidents Distinguished Service Award. He also has been selected as an Emory Lindquist Honors Society Mentor several times. Dr. Soles served as President of the SOUTHWESTERN PHILOSOPHICAL SOCIETY from 2003-05. When not studying or teaching philosophy he enjoys gardening, hiking, fly fishing in the Rockies and riding his horse named Jilly. Click here for Dr. Soles's cv.

Debbie SolesDEBORAH HANSEN SOLES, Professor Emeritus

Office: 300 Fiske Hall

Phone: (316) 978-7886

Ph.D. The Johns Hopkins University (1975)

Areas of Interest: Philosophy of Language, Epistemology, Philosophy of Logic; currently working on Donald Davidson on objectivity and belief.

Professor Deborah Soles routinely teaches Introductory Logic, and is responsible for Philosophy of Language, Philosophy of Logic, Theory of Knowledge, Analytic Philosophy, and offers special courses such as seminars on Davidson and Wittgenstein. Professor Soles received her B.A. from George Washington University and her Ph.D. from the Johns Hopkins University. She has been teaching continuously at WSU since 1975. Her major research area is the philosophy of language and adjacent topics in epistemology and logic, and she has published work on both historical and contemporary treatments of these topics. Currently she working on a book on Donald Davidson's epistemology. [click here for Dr. Soles's cv.] Since coming to WSU she has taught some dozen and a half different courses. She has served several times as an Emory Lindquist Honors program mentor, as a McNair program mentor, in 1999 was awarded the college's John R. Barrier Distinguished Teaching Award, and in 2008 was awarded the University Excellence in Teaching Award. In 1998 she received the President's Award for Distinguished Service to WSU. Dr. Soles is a Past President of the Southwestern Philosophical Society, and served as President of the Faculty Senate in 2009-2010.