The third lesson this knife teaches me is Neatness. Now I can picture the man who bought this knife. As he went into the store, he stood before the glass show case wherein were displayed scores of different kinds of knives. There were dark knives and light knives, big knives and little knives. His eye caught this knife, with its graceful lines, its smooth pearl handle, and he said, "That is a neat knife, I'll take that one." People are attracted to you by your neatness. The fourth lesson is Usefulness. Really it is quite wonderful the variety of uses to which this knife can be put. Here is a big blade, and a small blade; here is a blade with a file; folded in the back is a tiny pair of scissors. So the great test of life is its usefulness. MEMORY VERSE, _I Corinthians_ 9: 22 "I am made all things to all men, that I might by all means save some." MEMORY HYMN [545] _"Jesus calls us."_ LETTERS Who is the most popular man in your town? The Postman. Who is the man who is most eagerly looked for as he comes down the street? The Postman. Who receives, at every door where he stops, a most cordial welcome? The Postman. I wonder if the thrill of getting a letter will ever pass away. When you come home from school the first thing you do is to look on the hall table to see if the Postman has brought you a letter. It is the same when we grow up. No matter how many letters we may receive we never get over the keen delight at having the Postman bring us letters. Last Sunday afternoon you wrote your grandmother. You said, "Only two months more of school and then I am coming to see you, and all the summer vacation I am going to play around your big house, and in the barn, and across the fields, and through the woods." On your way to school Monday morning, you posted that letter. Monday afternoon you began looking for an answer. Tuesday you were impatient that you had not received a reply. Wednesday you were almost in tears, though, had you only stopped to think you would have known that it takes two days for a letter to get to your grandmother, she lives so far away. Thursday the answer came. "I am eager for vacation time to come so that you, my dear grandchild, may be here with me." I have here an unusual book. It is a book of letters. All the letters were written by a big man, a father, to little children, his children. The man who wrote them was Theodore Roosevelt. What fortunate children were his! Not many fathers take time to write to their children as did our great president. Oh, for more fathers like Roosevelt! Oh, for appreciative children, who will not only gladly receive, but cheerfully write, letters of love! MEMORY VERSE, _I John_ 2: 12 "I write unto you, fathers, because ye have known him that is from the beginning. I write unto you, little children, because ye have known the Father." MEMORY HYMN [544] _"I love to tell the story."_ A UNIQUE PSALM