There stood little Diamond, the author of all the mischief.

30. Did you never hear the story of Newton and his little dog, Diamond? One day, when he was fifty years old, and had been hard at work more than twenty years studying the theory of light, he went out of his chamber, leaving his little dog asleep before the fire.

31. On the table lay a heap of manuscript papers containing all the discoveries which Newton had made during those twenty years. When his master was gone, up rose little Diamond, jumped upon the table, and overthrew the lighted candle. The papers immediately caught fire.

32. Just as the destruction was completed, Newton opened the chamber door and perceived that the labors of twenty years were reduced to a heap of ashes. There stood little Diamond, the author of all the mischief. Almost any other man would have sentenced the dog to immediate death. But Newton patted him on the head, with his usual kindness, although grief was at his heart.

33. "O Diamond, Diamond," exclaimed he, "thou little knowest the mischief thou hast done!"

This incident affected his health and spirits for some time afterwards; but, from his conduct towards the little dog, you may judge what was the sweetness of his temper.

34. Newton lived to be a very old man, and acquired great fame. He was made a member of Parliament and was knighted by the king. But he cared little for earthly fame and honors, and felt no pride in the vastness of his knowledge. All that he had learned only made him feel how little he knew in comparison to what remained to be known.

35. "I seem to myself like a child," he observed, "playing on the sea-shore and picking up here and there a curious shell or a pretty pebble, while the boundless ocean of truth lies undiscovered before me."

36. At last, in 1727, when he was fourscore and five years old, Sir Isaac Newton died—or, rather, he ceased to live on earth. We may be permitted to believe that he is still searching out the infinite wisdom and goodness of the Creator as earnestly, and with even more success, than while his spirit animated a mortal body.