Behold, now, what a flagrant proof you have given of the vanity, weakness, and blindness of natural reason in divine matters. Your reason saw, with the utmost certainty, that the mystery must be an appeal to reason, merely because it contained such an height and depth of a divine philosophy; and yet the height and depth of its matters is the one full proof, that reason can have nothing to do with it. This may show you by what means Babel has built itself all over the Christian world. For, by the light of this Babylonian reason, the defenders and opposers of doctrines confute one another with such a certainty and strength of reason, as you saw, that reason must be the only judge of the mystery, from which it is just as much excluded by its own nature, as the mole under ground is, by its nature, excluded from the flight and sight of the towering eagle.