At the end of ancient civilization ontic anxiety is predominant, at the end of the Middle Ages moral anxiety, and at the end of the modern period spi… - Paul Tillich

One of the unfortunate consequences of the intellectualization of man's spiritual life was that the word "spirit" was lost and replaced by mind or intellect, and that the element of vitality which is present in “spirit” was separated and interpreted as an independent biological force. Man was divided into a bloodless intellect and a meaningless vitality. The middle ground between them, the spiritual soul, in which vitality and intentionality are united, was dropped.

A theological system is supposed to satisfy two basic needs: the statement of the truth of the Christian message and the interpretation of this truth for every new generation. Theology moves back and forth between two poles, the eternal truth of its foundation and the temporal situation in which the eternal truth must be received. Not many theological systems have been able to balance these two demands perfectly.

Plato … teaches the separation of the human soul from its “home” in the realm of pure essences. Man is estranged from what he essentially is. His existence in a transitory world contradicts his essential participation in the eternal world of ideas.