The humanist’s faith is based on his belief that nonrational causes cause rational beings (humans with minds) who are themselves composed entirely of the nonrational, and yet are somehow able to step outside of that nonrationality and reason to the conclusion that everything is material and therefore nonrational. Yet, if the nonrational material universe is “the whole show,” the humanist could never actually know if he is truly rational or only a nonrational material product with the illusion of rationality.
What is more reasonable to believe, that the nonrational produces the rational; or that a rational being (God) created other rational beings (humans) and a world founded on rational principles that can therefore be understood by these rational beings? The humanist must borrow from the theistic, Christian worldview, which can account for rationality. It is ironic that humanists often accuse Christians of possessing blind faith that the nonrational can produce the rational. Christianity gives birth to science, while humanism only gives birth to blindness.
Bob and Gretchen Passantino
Religion, Truth, and Value without God: Contemporary Atheism Speaks Out in Humanist Manifesto 2000 (Part Two)