Then Paul goes farther, and with even greater boldness adds, "Whether there be _knowledge_, it shall be done away." The wisdom of the ancients, where is it? It is wholly gone. A schoolboy to-day knows more than Sir Isaac Newton knew; his knowledge has vanished away. You put yesterday's newspaper in the fire: its knowledge has vanished away. You buy the old editions of the great encyclopaedias for a few cents: their knowledge has vanished away. Look how the coach has been superseded by the use of steam. Look how electricity has superseded that, and swept a hundred almost new inventions into oblivion. One of the greatest living authorities, Sir William Thompson, said in Scotland, at a meeting at which I was present, "The steam-engine is passing away." "Whether there be knowledge, it shall vanish away." At every workshop you will see, in the back yard, a heap of old iron, a few wheels, a few levers, a few cranks, broken and eaten with rust. Twenty years ago that was the pride of the city. Men flocked in from the country to see the great invention; now it is superseded, its day is done. And all the boasted science and philosophy of this day will soon be old. In my time, in the university of Edinburgh, the greatest figure in the faculty was Sir James Simpson, the discoverer of chloroform. Recently his successor and nephew, Professor Simpson, was asked by the librarian of the University to go to the library and pick out the books on his subject (midwifery) that were no longer needed. His reply to the librarian was this: "Take every text-book that is more than ten years old and put it down in the cellar." Sir James Simpson was a great authority only a few years ago: men came from all parts of the earth to consult him; and almost the whole teaching of that time is consigned by the science of to-day to oblivion. And in every branch of science it is the same. "Now we know in part. We see through a glass darkly." Knowledge does not last. Can you tell me anything that is going to last? Many things Paul did not condescend to name. He did not mention money, fortune, fame; but he picked out the great things of his time, the things the best men thought had something in them, and brushed them peremptorily aside. Paul had no charge against these things in themselves. All he said about them was that they would not last. They were great things, but not supreme things. There were things beyond them. What we are stretches past what we do, beyond what we possess. Many things that men denounce as sins are not sins; but they are temporary. And that is a favorite argument of the New Testament. John says of the world, not that it is wrong, but simply that it "passeth away." There is a great deal in the world that is delightful and beautiful; there is a great deal in it that is great and engrossing; but IT WILL NOT LAST.