ABSTRACT
Paul Tillich died in 1965. During the last ten years or so of his life he was widely regarded as the most distinguished of twentieth-century theologians. Unlike Karl Barth, probably the only other recent theologian to enjoy comparable esteem among professional theologians, he had a considerable reputation among intellectuals with no formal connection with the Christian church. Tillich seems not to have been altogether happy about the last volume. Against the Barthians, consequently, Tillich had to try to show that philosophy has an indispensable contribution to make to theology. The ontological enterprise is always represented by Tillich as consisting in the endeavour to answer a single question, 'the ontological question'. No attempt is made to trace the development of Tillich's thought about the ontological question. The author also makes no attempt to trace the major influences on Tillich's thought about ontology.
