Thus the scale is prepared for us to rise from things of sense to things of spirit, to rise from faith in nature to faith in Revelation, from the faith of LaPlace to the faith of Paul. No one who has studied nature will reject Christianity because it reveals truths that he cannot see with his naked eye,--because it speaks of things that he cannot comprehend. No one who has considered the shooting of a green blade will dogmatically deny its miracles. No one who has found in the natural world the intelligent wisdom that pervades all things, will wonder that he discovers a revelation of perfect love in Jesus Christ. "We walk by faith, not by sight," said Paul. So says every Christian; and it is of all things the most rational. Faith in something higher and greater than we can see, faith in something above this narrow scene, faith in something beyond this present life, faith in realities that are not of time or sense; from all that we have now considered we claim such faith to be most rational, most natural. God, spirit, immortality, instead of being inconsistent with what we know, are what we most legitimately deduce from it,--what we might expect from the light that trembles behind the curtain of mystery which bounds all our sensuous knowledge. We do believe, the veriest skeptic believes in something behind that curtain of mystery; nor can he withhold his faith because it attaches to that which is unseen and incomprehensible, without, as has already been shown, cutting every nerve that binds us to practical life, and smothering every suggestion that speaks from outward nature. If he do not believe in a God, then, or in Christ, or in immortality, let him not sneer at others because they walk by faith and not by sight; for he also must do so, though his faith be not in such high truths, such spiritual realities.