A second variety of presuppositionalism is the Rational Presuppositionalism of Gordon H. Clark (1902–1985). A staunch opponent of Van Til, Clark placed a much greater value on logical arguments than Van Til. Because he remained a presuppositionalist, however, he maintained one must accept the starting points or axioms of Christianity—that “what the Bible says, God has spoken.”17 As in geometry, axioms are never deduced but are assumed without proof, but Clark asserts that one can know that Christianity