Rationalism, Modern, a speculative point of view that resolves the supernatural into the natural, inspiration into observation, and revelation into what its adherents called reason, when they mean simply understanding, and which ends in stripping us naked, and leaving us empty of all the spiritual wealth accumulated by the wise in past ages, and bequeathed to us as an inheritance that had cost them their life's blood.
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
Rational Horizon * Ratisbo