The demands of God relate to mind alone, but the claims of physiology and what are termed laws of nature, rest upon the body only. Which, then, are we to accept as legitimate and capable of producing most harmony? We cannot obey them both, for one works against the other, and will be supreme in the affections. Spirit and matter are opposites, and we cannot work from the standpoints of both; attempt it and we shall find ourself cleaving to one and forsaking the other. (Eddy, Mary Baker, Science and Health, 1st, ed., p.334)