The doctrine of Jesus is the light. The light shines forth, and the darkness cannot conceal it. Men cannot deny it, men cannot refuse to accept its guidance. They must depend on the doctrine of Jesus, which penetrates among all the errors with which the life of men is surrounded. Like the insensible ether filling universal space, enveloping all created things, so the doctrine of Jesus is inevitable for every man in whatever situation he may be found. Men cannot refuse to recognize the doctrine of Jesus; they may deny the metaphysical explanation of life which it gives (we may deny everything), but the doctrine of Jesus alone offers rules for the conduct of life without which humanity has never lived, and never will be able to live; without which no human being has lived or can live, if he would live as man should live,--a reasonable life. The power of the doctrine of Jesus is not in its explanation of the meaning of life, but in the rules that it gives for the conduct of life. The metaphysical doctrine of Jesus is not new; it is that eternal doctrine of humanity inscribed in all the hearts of men, and preached by all the prophets of all the ages. The power of the doctrine of Jesus is in the application of this metaphysical doctrine to life. The metaphysical basis of the ancient doctrine of the Hebrews, which enjoined love to God and men, is identical with the metaphysical basis of the doctrine of Jesus. But the application of this doctrine to life, as expounded by Moses, was very different from the teachings of Jesus. The Hebrews, in applying the Mosaic law to life, were obliged to fulfil six hundred and thirteen commandments, many of which were absurd and cruel, and yet all were based upon the authority of the Scriptures. The doctrine of life, as given by Jesus upon the same metaphysical basis, is expressed in five reasonable and beneficent commandments, having an obvious and justifiable meaning, and embracing within their restrictions the whole of human life. A Jew, a disciple of Confucius, a Buddhist, or a Mohammedan, who sincerely doubts the truth of his own religion, cannot refuse to accept the doctrine of Jesus; much less, then, can this doctrine be rejected by the Christian world of to-day, which is now living without any moral law. The doctrine of Jesus cannot interfere in any way with the manner in which men of to-day regard the world; it is, to begin with, in harmony with their metaphysics, but it gives them what they have not now, what is indispensable to their existence, and what they all seek,--it offers them a way of life; not an unknown way, but a way already explored and familiar to all.