| Abstraction in the Formation of Concepts | Cynicism |
| Agnosticism | Death and Immortality |
| Alienation in Christian Theology | Deism |
| Analogy in Early Creek Thought | Design Argument |
| Analogy in Patristic and Medieval Thought | Determinism in Theology: Predestination |
| Antinomy of Pure Reason | Double Truth |
| Appearance and Reality | Dualism in Philosophy and Religion |
| Baconianism | Epicureanism and Free Will |
| Buddhism | Eschatology |
| Causation in the Seventeenth Century | Problem of Evil |
| Causation in the Seventeenth Century, Final Causes | Existentialism |
| Certainty in Seventeenth-Century Thought | Faith, Hope, and Charity |
| Certainty since the Seventeenth Century | Free Will and Determinism |
| Chain of Being | Free Will in Theology |
| Christianity in History | Gnosticism |
| Church as an Institution | Idea of God from Prehistory to the Middle Ages |
| Modernism in the Christian Church | Idea of God, 1400-1800 |
| Cosmic Fall | Idea of God since 1S00 |
| Creation in Religion | Happiness and Pleasure |
| Hegelian Political and Religious Ideas | Positivism in Latin America |
| Heresy in the Middle Ages | Positivism in the Twentieth Century (Logical Empiricism) |
| Heresy, Renaissance and Later | Pragmatism |
| Hermeticism | Prophecy in Hebrew Scripture |
| Hierarchy and Order | Prophecy in the Middle Ages |
| Holy (The Sacred) | Pythagorean Doctrines to 300 B.C. |
| Idea | Pythagorean Harmony of the Universe |
| Ideal in Philosophy from the Renaissance to 1780 | Ramism |
| Impiety in the Classical World | Rationality among the Greeks and Romans |
| Irrationalism in the History of Philosophy | Reformation |
| Islamic Conception of Intellectual Life | Relativism in Ethics |
| Macrocosm and Microcosm | Origins of Religion |
| Metaphor in Philosophy | Ritual in Religion |
| Metaphor in Religious Discourse | Religion and Science in the Nineteenth Century |
| Metaphysical Imagination | Religious Enlightenment in American Thought Moral Sense |
| Religious Toleration | Necessity |
| Right and Good | Neo-Platonism |
| Romanticism in Post-Kantian Philosophy Ethics of Peace | Sin and Salvation |
| Perennial Philosophy | Skepticism in Antiquity |
| Perfectibility of Man | Skepticism in Modern Thought |
| Pietism | Ethics of Stoicism |
| Platonism in Philosophy and Poetry |
| Platonism in the Renaissance | Theodicy |
| Platonism since the Enlightenment | Time |
| Positivism in Europe to 1900 | Utilitarianism |
