Articles and Chapters

Selected Publications


Continental Philosophy

“Nicolai Hartmann”, The Stanford Encyclopedia of Philosophy

Peterson, Keith, with contributions by Roberto Poli, “Nicolai Hartmann”, The Stanford Encyclopedia of Philosophy (Spring 2022 Edition), Edward N. Zalta (ed.), forthcoming URL = <>.


Nicolai Hartmann’s Contribution to an Ecological Materialist Anthropology

In Erik N. Dzwiza & Andreas Speer, Eds. Philosophische Anthropologie als Interdisziplinäre Praxis. Brill | Mentis Verlag, 385–402, 2021.


Introduction: Hartmann’s Realist Ontology

In Ontology: Laying the Foundations, Trans. K. Peterson. Berlin: De Gruyter, xv-xxxix, 2019


Phenomenology and Being-In-Itself in Hartmann’s Ontology: Laying The Foundations

Horizon: Studies in Phenomenology, 2019


Nicolai Hartmann and Recent Realisms

Axiomathes Special Issue: Nicolai Hartmann: Reality, Modality, and Value, 2017


Flat, Hierarchical, or Stratified? Determination and Dependence in Social-Natural Ontology

New Research on the Philosophy of Nicolai Hartmann, 2016


Scenes of Disagreement: Nicolai Hartmann between Phenomenological Ontology and Speculative Realism

Early Phenomenology, Brian Harding and Michael Kelly, eds., 2014


Nicolai Hartmann’s Philosophy of Nature: Realist Ontology and Philosophical Anthropology

Scripta Philosophia Naturalis, Jun 2012


An Introduction to Nicolai Hartmann’s Critical Ontology

Axiomathes , 2012


Environmental Philosophy


The Very Idea of an Ecological Worldview

Ethics & The Environment 26, 1 (2021): 21–55.


Stratification, Dependence, and Nonanthropocentrism: Nicolai Hartmann’s Critical Ontology

Ontology of Nature: Continental Perspectives and Environmental Reorientations, 2017 (2012)


Ecosystem Services, Nonhuman Agencies, and Diffuse Dependence

Environmental Philosophy, 2012


Bringing Values Down to Earth: Max Scheler and Environmental Philosophy

Appraisal: The Journal of the Society for Post-Critical and Personalist Studies, Re-Appraisal: Max Scheler , 2011


From Ecological Politics to Intrinsic Value: An Examination of Kovel’s Value Theory

Capitalism Nature Socialism, 2010


All That We Are: Philosophical Anthropology and Ecophilosophy

Cosmos & History: The Journal of Natural and Social Philosophy, 2010