Introduction: The theological development and contribution of Paul Tillich -- Selected texts. The struggle for a new theonomy. On the idea of a theology of culture (1919) ; Basic principles of religious socialism (1923) -- Protestant theology amid socialist crisis. Realism and faith (1929) ; Nature and sacrament (1929) ; The two roots of political thought (1933) ; What is wrong with the "dialectic" theology? (1935) ; The Church and the Third Reich : ten theses (1932) -- In the sacred void : being and God. Religion and secular culture 91946) ; The problem of theological method (1947) ; The ontological structure and its elements (1951) ; The courage to be (1952) -- Amid structures of destruction : Christ as new being (1957). Existentialism and Christian theology ; From essence to existence (The Fall) ; Estrangement and sin ; Self-destruction and evil ; Jesus as the Christ ; The new being in Jesus as the Christ -- Among the ambiguities of life : Spirit and the churches (1963). The Divine Spirit in the functions of life ; The Spirit in self-integration (morality) ; The Spirit in self-creativity (culture) ; The Spirit in self-transcendence (religion) ; The Kingdom of God and world history -- In the end : revisioning and hope. The significance of the history of religions for the systematic theologian (1965) ; The right to hope : a sermon (1965).