C. S.Lewis on the AFR and the Scientific Juggernaut

Is our world solely material and accidental: dangerous idea: C. S.Lewis on the AFR and the Scientific Juggernaut:

...in other words, unless Reason is an absolute -- all [science] is in ruins. Yet those who ask me to believe this world picture also ask me to believe that Reason is simply the unforeseen and unintended by-product of mindless matter at one stage of its endless and aimless becoming. Here is flat contradiction. They ask me at the same moment to accept a conclusion and to discredit the only testimony on which that conclusion can be based.