The 18th century in Europe is the ideal period to study the interaction of traditional beliefs and new ideas stemming from scientific observation and philosophical rationalization. The purpose of this paper is to examine the role played by Charles de Brosses and Antonio Niccolini in the process of transmission of knowledge coming through influential members of a European aristocracy that remained attached to traditional values. In fact, the rediscovery of the Classical heritage and its dissemination in print, albeit an expensive enterprise, was not deemed by men such as Niccolini and de Brosses as incompatible with their traditional religious beliefs. The unpublished correspondence between these two men provides the evidence for this claim. The two men exchanged information about the continental nature of Australasia, about the latest mathematical discoveries, about the origin of languages and on oriental religions. At the same time, their religious and political convictions remained firmly based on the received notions about religion and society.