I don't think this is true. A rationalist believes that truth can be obtained by human faculty alone. Clark believed that all knowledge depends on revelation. And his approach to revelation was completely presuppositional. Am I missing something?

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Davidius
Husband of Emilia
Member: First Reformed Presbyterian Church of Durham (RPCNA) - Durham, NC
Currently in the process of transferring membership to an as-yet-undecided church in Chapel Hill
Student: University of North Carolina at Chapel Hill, German Literature and Classics