Or if the lesson was, "No man can serve two masters," etc., let the teacher say: "The other day I saw two men together walking down the avenue, and a little dog was running behind them; so they went on for a while, and I wondered to which of them the dog belonged. When they came to the corner of a certain street they shook hands and went opposite ways. Then I saw at once to which of them the little dog belonged. He could not follow both; so he trotted after his master. So, dear children, it is with you; you may try to be Christ's servants and the servants of Satan at the same time, but it will be in vain; 'You cannot serve God and mammon.'" If on the subject of falsehood, we would impress our pupils with the fact that the degree does not affect criminality. An apt illustration will be found in "Eve and the forbidden fruit." The Bible is full of perfect examples, if rightly selected. "Old Humphrey," the English writer for children, abounded in pertinent illustrations. I copy one: "Think not that because you look like other teachers or scholars, and undertake the same duties, that no difference is seen by those around you. You may look alike and be altogether different." Illustration 1. "I came to two frozen ponds, so much alike in size and form that at the first view one might have been regarded as the counterpart of the other. This was, however, very far from being the case; for, after making a hole in the ice, I found one to be only a few inches deep, while with my stick I could not reach the bottom of the other." 2. "I picked up two walnuts as they lay among the dry leaves, under the tree on which they had grown; both were large, and I thought that each would be good; but, no! one was altogether hollow, while the other contained a capital kernel." 3. "I bought two apples at a fruit-stand--ruddy and ripe; I do not believe the man who sold them to me could have pointed out any difference between them; and yet, for all this, when I came to turn them around and examine them, I found one of them to be firm and sound, and the other rotten to the very core." "As it was with the ponds, the walnuts, and the apples, so it may be with you. Some are shallow, while others have depth of understanding; some have depth of understanding, while others are shallow; some are full of knowledge, while others are empty; and some are firm and to be relied upon, while others are unsound at their hearts." These are short and very simple, but excellent and to the point.