“ His literary activities were devoted to the history of Greek religion and to the Greek language and literature. His greatest work, Aglaophamus (1829) , is still valuable to students. In this he maintains, against the views put forward by G. F. Creuzer in his Symbolik (1810–1823) , that the religion of the Greek mysteries (especially those of Eleusis) did not essentially differ from the national religion; that it was not esoteric; that the priests as such neither taught nor possessed any higher knowledge of God; that the Oriental elements were a later importation. ”