The role of intermediary was also prominent in the Republic of Letters. Scholars wrote on behalf of others asking for hospitality, books, and help in research. Often the involvement of an intermediary was a matter of simple convenience. However, the use of an intermediary frequently had underlying sociological meaning. A request ending in failure can be both embarrassing and demeaning; refusal to perform a service could mean that the solicited part prefers not to enter into a reciprocal relationship with someone of lower status.