Yet what is at issue here is really a question of fact; and among those who have been in contact with the facts, among those, above all, who have had experience of the critical fact--who once were not Christians and now are--there will not be two opinions about it. The difference between the Christian and the non-Christian, though historical accidents have made it less visible, or rather, less conspicuous than it once was, is still as real and as vast as ever. The higher nature of man, intellectual and spiritual, must always have an element in which it lives, an atmosphere surrounding it, principles to guide it, ends to stimulate its action; and it may find all these in either of two places. It may find them in the world--that is, in that sphere of things from which God, so far as man's will and intent goes, is excluded; or it may find them in God Himself and in His Son. It is no objection to this division to say that God cannot be excluded from His own world, that He is always at work there whether acknowledged or not; for the acknowledgment is the essential point; without it, though God is near to man, man is still far from God. Nothing could be a more hopeless symptom in character than the benevolent neutrality which evades this truth; it takes away every motive to evangelise the non-Christian, or to work out the originality and distinctiveness of the Christian life itself. Now, as in the apostolic age, there are persons who are Christians and persons who are not; and, however alike their lives may be on the surface, they are radically apart. Their centre is different; the element in which they move is different; the nutriment of thought, the fountain of motives, the standard of purity are different; they are related to each other as life in God, and life without God; life in Christ, and life apart from Christ; and in proportion to their sincerity is their mutual antagonism.