In the first place the origin of all things is mysterious, the origin of matter, the origin of energy, the origin of life, the origin of thought. And present experience is no criterion of any of these things. What were their birth throes, what were their accompanying signs and wonders, when the morning stars sang together in the dawn of their appearing, we do not and cannot know. If therefore the Incarnation was, as Christians believe, another instance of a new beginning, present experience will neither enable us to assert or deny, what its attendant circumstances may or may not have been. The logical impossibility of proving a negative is proverbial. And on a subject, whose conditions are unknown to us, the very attempt becomes ridiculous. And secondly, it is a mistake to suppose that as a matter of strict evidence, the Christian Church has ever rested its claims upon its miracles. A confirmatory factor indeed, in a complication of converging arguments, they have been, and still are to many minds. But to others, who in the present day are probably the larger class, it is not so easy to believe Christianity on account of miracles, as miracles on account of Christianity. For now, as ever, the real burden of the proof of Christianity is to be sought in our present experience. There is a fact of experience as old as history, as widely spread as is the human race, and more intensely, irresistibly, importunately real than all the gathered experience of art and policy and science,--the fact which philosophers call moral evil, and Christians sin. It rests upon no questionable interpretation of an Eastern allegory. We breathe it, we feel it, we commit it, we see its havoc all around us. It is no dogma, but a sad, solemn, inevitable fact. The animal creation has a law of its being, a condition of its perfection, which it instinctively and invariably pursues. Man has a law of his being, a condition of his perfection, which he instinctively tends to disobey. And what he does to-day, he has been doing from the first record of his existence. Video meliora proboque, Deteriora sequor.