1. See Paul Tillich, “Über die Idee einer Theologie der Kultur” in Paul Tillich, Main Works/Hauptwerke. Vol. 2. Writings in the Philosophy of Culture, ed. Michael Palmer (Berlin: de Gruyter, 1990), 69–86.
2. This text has been translated into English by W. B. Green in Paul Tillich, What Is Religion? ed. James Luther Adams (New York: Harper & Row, 1969), 155–181. An alternative, improved, translation by Victor Nuovo is published as Visionary Science. A Translation of Tillich’s “On the Idea of a Theology of Culture” with an Interpretive Essay (Detroit: Wayne State University Press, 1987).
3. See the representative texts collected in James M. Robinson, The Beginnings of Dialectical Theology (Richmond: John Knox Press, 1968).
4. See also Paul Tillich, The Religious Situation, trans. H. Richard Niebuhr (New York: H. Holt and Co., 1932).
5. For more on this topic, see Russell Re Manning, Theology at the End of Culture. Paul Tillich’s Theology of Culture and Art (Leuven: Peeters, 2005), 5–55.