Introduction
Across history, philosophers have offered different answers. Some emphasized substance — the idea that reality is made of fixed things with stable essences. Others focused on mind or spirit, matter in motion, or the freedom of human existence. Each system frames how we think about science, religion, politics, and even daily life.
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Process philosophy is a way of looking at reality as always in motion. Instead of imagining the world as made up of static substances of some kind - like solid entities or fixed essences which never change - it sees the world as an interconnected web of events, relationships, and ongoing processes merging, conflicting, absorbing, rejecting, and experiencing itself both in whole and in part.
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Rocks, rivers, trees, and people aren’t “finished” objects; they’re organic and quantum becomings, unfolding moment by moment as a concrescing mass.
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Even God, in process thought, isn’t outside time but is wholly engaged with the world, continually relating, adapting, and responding. In religious terms, God is theoretically transcendent but it wouldn't matter to the world; in process terms, God must be intimately and immanently connected to the world (what is known as panentheism; NOT pantheism).
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The key idea: reality is not a collection of things but a network of happenings, occurrences, evolving relationships.
As example, think of processual reality not as a static photograph or snapshot but as an evolving movie or storyline.
Process philosophy, most prominently articulated by Alfred North Whitehead (1861–1947), is a metaphysical system built around the primacy of process over substance. Rather than treating substances (self-contained, changeless entities) as ultimate, Whitehead posited that the basic units of reality are actual occasions - momentary drops of experience that arise, relate to whatever is present, and perish in the flow of becoming.
Core Features:
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Concrescence: Each actual occasion integrates/merges "influences from the past" into a unique unity/essence, then perishes into objective immortality. Reality is always but a moment of time before concrescing towards the next moment.
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Creativity: Is the ultimate metaphysical principle/motif. Processualism eternally drives toward novelty in a perpetualized state of ongoing creativity (or creation).
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Prehension: All things feel or experience all other entities. This prehensive state is deeper than mere "sense perception" and is better understood as an ontological state of relationality.
Eternal Objects: Pure potentials might be thought of as the goal of processual becoming. They are unlike Platonic forms that are fixed objectives and more like evolving objectives driving towards self-fulfillment within arising, actualizing occassions.
God’s Role: Per religion, God functions dipolarly - as the primordial ordering of eternal possibilities (sic, God's primordial nature) as well as the fellow-sufferer who takes the world's experiences into the divine life of God's Being (sic, God's consequent nature).
This system overturns classical metaphysics (Aristotelian substance ontology, Cartesian dualism,etc.) and opens a framework for integrating science, philosophy, and religion in terms of relationality, dynamism, and becoming.
3. Expanded Lexicon of Terms, Concepts, and Phrases
Here’s a broadened vocabulary-set to help avoid recycling similar wordings, concepts, and ideas:
General Descriptors
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Becoming over Being
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Flux and Flow
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Ontological Relationality
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Dynamic Interdependence
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Cosmological Holism
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Events not Substances
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Processual Ontology
Technical Whiteheadian
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Actual Occasions (momentary drops of experience)
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Nexus (societies of occasions)
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Prehensions (affectuating feelings/relations)
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Concrescence (the act of becoming one)
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Perishing into Objectivity (an attained actuality which immediately perishes)
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Eternal Objects (potential forms)
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Novelty / Creativity as Ultimate Categories
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Dipolar Deity (Primordial vs Consequent)
Theological/Philosophical Extensions
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Panrelationalism (all things related to one another)
Panexperientialism (all entities feel or experience one another to some degree)
Panpsychism (there is a divine/cosmic consciousness all the way down to some degree)
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Panentheism (All of creation exists in God and not apart from God, relational model)
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Participatory Universe
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Cosmic Symbiosis (entities advantage or disadvantage one another in community)
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Mutual Becoming of God with World and World with God
Fresh Metaphors
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From snapshots to storylines
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From architecture to cosmo-ecological ecosystems
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From machine clockwork to continuous symphonic improvisation
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From building blocks to river currents (where no part of the river is the same twice)
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From monoliths to living, evolving networks
(For general readers — metaphors & simple categories)
| Philosophy | How it sees reality | Metaphor | Focus of Attention |
|---|---|---|---|
| Substance (Aristotelian) | World made of unchanging “things” with fixed essences | Building blocks | Stability, essence, permanence |
| Cartesian Dualism | Split between mind and body; two kinds of substances | Two worlds | Thought vs matter |
| Mechanistic Materialism | Reality as a machine, predictable by laws | Clockwork | Matter in motion |
| Idealism (Platonic/Hegelian) | Ideas or spirit are more real than material things | Blueprint or script | Reason, spirit, forms |
| Existentialism | Reality defined by human choice in absurd freedom | Leap across a void | Authenticity, angst, freedom |
| Process Philosophy | Reality is relational, dynamic, in constant becoming | Flowing river | Events, relationships, creativity |
5. Deep Contrast Chart
(For advanced readers — metaphysical categories & Whiteheadian vocabulary)
| Philosophy | Ontological Unit | Ultimate Reality | Relation to Change | Human/Divine Orientation |
|---|---|---|---|---|
| Aristotelian Substance | Substance (ousia) | Form + Matter | Change = accidental | God as Unmoved Mover |
| Cartesian Dualism | Two substances: res cogitans (mind) & res extensa (matter) | Thinking vs extended being | Change secondary to substance | God as guarantor of certainty |
| Mechanistic Materialism | Atomistic particles in motion | Matter + Laws | Change = motion, deterministic | God excluded |
| German Idealism (Kant, Hegel) | Mind/spirit or Absolute | Rational structures | Change = dialectical unfolding of spirit | God = Absolute Spirit |
| Existentialism (Sartre, Kierkegaard, Camus) | Individual existence | Radical freedom / absurdity | Change = choice, angst | God either absent or paradoxical |
| Process Philosophy (Whitehead) | Actual occasions (drops of experience) | Creativity + Relational Becoming | Change = essence of reality | God as dipolar (primordial + consequent, relationally engaged) |
6. Extra Lexicon for Contrasts
Process vs Substance
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Substance = static, self-contained, essence-driven.
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Process = relational, time-bound, becoming-driven.
Process vs Mechanism
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Mechanism = determinism, predictability, reductionism.
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Process = openness, novelty, emergence.
Process vs Idealism
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Idealism = primacy of ideas/spirit.
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Process = primacy of experience/events that integrate both matter & idea.
Process vs Existentialism
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Existentialism = isolated individual facing freedom/absurdity.
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Process = individual + world co-creating meaning, relational wholeness.

AC Grayling's History of Philosophy
7A. Precursors & Early Intuitions
| AC Grayling's History of Philosophy |
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Heraclitus (c. 535–475 BCE) — “All things flow” (panta rhei). Reality as flux.
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Buddha / Early Buddhist thought (c. 5th century BCE) — impermanence (anicca) as fundamental.
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Daoist Tradition (Laozi, Zhuangzi, 4th–3rd BCE) — the Dao as flowing process, ever-becoming.
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Hegel (1770–1831) — dialectical unfolding of spirit/history; reality as process of becoming.

Matthew Segall link
7B. Founders of Modern Process Philosophy
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Henri Bergson (1859–1941) — philosophy of duration, creativity, and life force (élan vital).
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William James (1842–1910) — radical empiricism, stream of consciousness, pluralism.
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Alfred North Whitehead (1861–1947) — systematized process metaphysics in Process and Reality (1929).
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Charles Hartshorne (1897–2000) — developed process theism, extending Whitehead into theology.
7C. Major 20th-Century Developers
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John B. Cobb Jr. (1925–2022) — leading figure in process theology, eco-philosophy, interfaith dialogue.
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David Ray Griffin (1939–2022) — expanded process thought into philosophy of science, religion, postmodern critique.
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Isabelle Stengers (b. 1949) — Belgian philosopher of science, co-wrote Order Out of Chaos with Prigogine.
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Ilya Prigogine (1917–2003) — Nobel laureate chemist, dissipative structures, irreversibility in physics.
7D. Contemporary Figures
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Catherine Keller (b. 1953) — constructive theology, feminist/process theology, ecological critique.
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Philip Clayton (b. 1956) — process-influenced panentheism, science-religion bridge.
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Roland Faber (b. 1963) — Whitehead scholar, comparative philosophy, process cosmology.
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Timothy Eastman (1947–2023) — process physics, processual logoi.
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Steven Shaviro (b. 1954) — philosopher, connects Whitehead with speculative realism, aesthetics.
7E. Influence Beyond Philosophy
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Teilhard de Chardin (1881–1955) — evolutionary cosmology, Omega Point (parallel to process views).
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Brian Swimme (b. 1950) — cosmologist, Big History with process leanings.
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Open & Relational Theologians (Thomas Jay Oord, et al.) — draw heavily on process categories.
Note:
The figures in Category #7E are not “pure” process philosophers in the Whiteheadian sense. Instead, they are process-like thinkers whose work resonates with or parallels process categories:
Teilhard de Chardin leaned toward an evolutionary teleology of spirit, not Whitehead’s relational metaphysics.
Brian Swimme narrates a cosmic story of emergence, echoing process themes without adopting the technical framework.
Open & Relational Theologians (e.g., Oord) share the emphasis on relationality and openness but often simplifies or diverges from Whitehead’s deeper metaphysical system.
In other words, these figures extend the intuition of process — dynamism, relationality, evolution, and becoming — but are not always aligned with the full metaphysical depth and technical categories of Whitehead’s system.
In short:
Process Philosophy provides the deep metaphysical foundation.
Open & Relational Theology is a more accessible (i.e., less rigorous, public-oriented), theological expression that shares relational and open-future emphases but often does not go all the way down into Whitehead’s philosophical system.
More simply, Open & Relational Theology's origins is in Process Philosophy and Theology; hence, a fuller description would be Open & Relational PROCESS Theology.
Tom Oord is a personal friend and is reaching across non-process theologies as he is allowed - theologies such as Evangelicalism, Methodism, Lutheranism, Catholicism, Orthodoxy, etc, to help each Christian sector understand God, faith, church, conduct, outreach, and mission, in a deeper, more Christological and contemporary setting of postmodernism. That is, Tom is attempting to connect the church of yesteryear to the church of the present. - re slater
8. Summary
In short:
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Whitehead is the central architect.
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Hartshorne anchored the theological side.
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Bergson & James fed into the groundwork.
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Cobb, Griffin, Stengers, Keller, Clayton, Faber carry the mantle today.
Conclusion
Philosophy, at its core, is the quest to understand reality. Most traditions have tried to explain reality in terms of what endures — the stable, permanent, or timeless. Process philosophy turns this around. It begins with the insight that what is most real is not permanence but change itself; not isolated substances but relational becoming.
This reorientation offers a vision of the world as alive, dynamic, and interconnected. Rocks, rivers, cells, stars, and even God are not finished objects but participants in an unfolding story of creation. The cosmos is not a completed structure but an open adventure, where novelty is always possible.
To step into process philosophy is to move from seeing reality as a snapshot to seeing it as a movie — a living story of becoming in which we, too, are co-creators.
Process Philosophy & Metaphysics — Core Works & Introductions
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Alfred North Whitehead, Process and Reality: An Essay in Cosmology (1929; corrected edition edited by David Ray Griffin & Donald W. Sherburne, 1957, Free Press) — Whitehead’s magnum opus, laying out the full speculative metaphysical system. PhilPapers+2Stanford Encyclopedia of Philosophy+2
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Online references / summary: Stanford Encyclopedia of Philosophy: Alfred North Whitehead Stanford Encyclopedia of Philosophy
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Stanford Encyclopedia entry on “Process Philosophy” Stanford Encyclopedia of Philosophy
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Internet Archive often holds older editions (check for public domain or open access versions).
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Donald W. Sherburne, A Key to Whitehead’s Process and Reality (1966) — A classic guide aiding in navigating Whitehead’s dense terminology and structure.
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C. Robert Mesle, Process-Relational Philosophy: An Introduction to Alfred North Whitehead (2008) — a clear, relatively accessible introduction to Whiteheadian process thought.
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Nicholas Rescher, Process Philosophy: A Survey of Basic Issues — a helpful survey of major themes and debates in process thinking.
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Process Philosophy article in the Stanford Encyclopedia of Philosophy (Winter 2006 archive) — summarizing the nature, aims, and internal structure of process metaphysics. Stanford Encyclopedia of Philosophy
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Process Philosophy in the Internet Encyclopedia of Philosophy — focusing especially on the role of creativity and the contrast to substance metaphysics. Internet Encyclopedia of Philosophy
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“What is ‘process philosophy’ and who is Alfred North Whitehead” — a more informal / popular introduction to the central ideas. Medium
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Whitehead Research Project — critical edition, archives, ongoing scholarship. Wikipedia
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Center for Process Studies — institutional hub for process thought, archives, bibliographies, journals. Wikipedia
Process Theology, Open & Relational Theology — Key Works & Resources
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Thomas Jay Oord, Open and Relational Theology: An Introduction to Life-Giving Faith — a contemporary theological presentation rooted in relational openness. OhioLINK
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OpenTheism.info — “Open and Relational Theologies Bibliography” (compiled by Thomas Oord) — a curated list of books, essays, dissertations pertaining to relational theology, open theism, and process theology. OpenTheism.info
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Center for Open & Relational Theology (C4ORT) — a repository of relational theology essays, open-access resources, reading groups, etc. Center for Open & Relational Theology+1
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Studies in Open and Relational Theologies series — academic book series promoting discourse across open, relational, and process perspectives (ORT, process theology, etc.). Center for Open & Relational Theology
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“Resources — Center for Open & Relational Theology” — a web page linking to essays, readings, and further bibliographic paths. Center for Open & Relational Theology
Secondary / Historical / Comparative & Contextual Works
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Henri Bergson, Creative Evolution — foundational for the notion of duration, novelty, and evolving life that influenced process thinkers.
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William James, The Principles of Psychology; Essays in Radical Empiricism — especially the idea of stream of consciousness and pluralism in experience.
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Charles Hartshorne, The Divine Relativity (1948), Man’s Vision of God (1964) — for theological extension of process metaphysics.
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John B. Cobb Jr., Process Theology: An Introductory Exposition; God and the World — key humanist / theological interpreters of process philosophy.
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David Ray Griffin, God, Power, and Evil; Whitehead’s Radically Different Postmodern Philosophy — important for bridging process thought with contemporary theology, science, and critique.
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Catherine Keller, Cloud of the Impossible, Face of the Deep — feminist and ecological theology influenced by process-relational thinking.
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Roland Faber, Theologizing after the End of Metaphysics, Charles Hartshorne’s Natural Theology — engaging process thought in comparative philosophy.
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Isabelle Stengers, Order Out of Chaos (with Ilya Prigogine) — cross-disciplinary resonance with process ideas in science and cosmology.
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Works on philosophy of science and process: Ilya Prigogine, The End of Certainty, Exploring Complexity (with Isabelle Stengers).
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Comparative philosophy: works connecting process philosophy with Eastern thought (Buddhist impermanence, Daoism, etc.).
Online / Digital & Reference Resources
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Stanford Encyclopedia of Philosophy — entries on Process Philosophy, Whitehead, etc. Stanford Encyclopedia of Philosophy+1
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Internet Encyclopedia of Philosophy — articles on process metaphysics and creativity. Internet Encyclopedia of Philosophy
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OpenTheism.info — relational / open theology bibliographies. OpenTheism.info
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C4ORT (Center for Open & Relational Theology) — essays, bibliographies, open theology resources. Center for Open & Relational Theology+1
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Whitehead Research Project / Whitehead Encyclopedia — for critical editions, archives, and scholarly interfaces. Wikipedia
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Center for Process Studies — archives and bibliographies in the process tradition. Wikipedia
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Open Access / Digital Theological Library — to access primary texts in theology / religious studies. DTL LibGuides
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Open access guides in religious studies (e.g. Duke’s open religion guides) — directories of journals, books. Duke University Libraries


