This study, based on the Bampton Lectures delivered in the University of Oxford in 1992, examines what is often called the crisis of modernity, with reference not only to modernity but to modern culture in general. Problems of social, theological, and philosophical thought are traced back beyond the Enlightenment to the very roots of Western Christian theology. A response to these problems is essayed by constructively developing conceptual possibilities to be found in ancient and modern theology of the Trinity.