One of the most regrettable facts connected with some of our teaching is that teachers leave the preparation of their lessons until the few minutes just preceding their recitation hour. They then hurry through a mass of facts, rush into class and mull over these dry husks, unable in the rush even to see the kernel of truth lying within. Little wonder pupils tire of such rations. It is the teacher's obligation to "see through" and discover the gems that really make lessons worth while. Forty-five minutes once a week is so meagre an allotment of time for the teaching of the greatest principles of life! Surely every one of those minutes should be sacredly guarded for the consideration of vital truths. The aim, coupled with careful organization, is one of the best safeguards possible. The aim is the great focus for a lesson's thought. It is the center about which all else revolves. It specifies what shall be included and what excluded out of the great mass of available material. A single chapter of scripture may contain truths enough for a dozen lessons, only one of which can be treated in any one recitation. The aim singles out what can be appropriately grouped under one unified discussion. If we turn, for instance, to the ninth chapter of Matthew, we find at least eight different major incidents, each one deserving a lesson in itself. There is the case of: The palsy. The charge of blasphemy. The glorifying of God by the multitude. The calling of Matthew. The statement that only the sick need the physician. The case of new cloth and the old garment. The raising of the daughter of Jairus. The healing of the two blind men. It is perfectly clear that all of these incidents could not be adequately considered in any one lesson. Assuming that the teacher is free to handle this ninth chapter as he pleases, we are forced to the conclusion that knowing his class, as he does, he must choose that incident or that combination of incidents which will mean most in the lives of his pupils. In other words, he centers his attention upon one major central truth--his aim. By so doing he guards against wandering and inadequacy of treatment and makes for the unified presentation of one forceful thought.