Dr. Guillen is right, it takes more blind faith to accept the unseen, unproven elements of atheism.
God proves Himself to us through the magnificence of His boundless Creation. From the subatomic level up through intergalactic, it is all His. And it appears to be limitless on both ends! Scientists have shown that the Universe (space/time continuum) is not only expanding, but the rate at which it expands is accelerating. And then on the subatomic level, things keep on getting smaller and smaller.