Sentence:  It follows , then , provided the possibilities have been exhausted , that the only real alternative is the general viewpoint of the `` left '' , which has been represented on the Continent by Fritz Buri and , to some extent at least , is found in much that is significant in American and English <WSD>theology</WSD> . 
Meaning of the word marked with <WSD> tags:  the rational and systematic study of religion and its influences and of the nature of religious truth