Did you ever see a wise mother come into a noisy nursery where perhaps her own children were playing excitedly with several little companions, who had been invited in to spend a rainy afternoon? The mother sees all the children in a great state of excitement over their play, and two or three of them disagreeing over some foolish little matter, with their brains in such a state that the nursery is thick with infantile human dust. What does the wise mother do? Add dust of her own by scolding and fretting and fuming over the noise that the children are making? No--no indeed. She first gets all the children's attention in any happy way she can, one or two at a time, and then when she has their individual attention to a small degree, she gets their united attention by inviting their interest in being so quiet that they "can hear a pin drop." The children get keenly interested in listening. The first time they do not hear the pin drop because Johnnie or Mollie moved a little. Mother talks with interest of what a very delightful thing it is to be for a little while so quiet that we can hear a pin drop. The second time something interferes, and the third time the children have become so well focused on listening that the little delicate sound is heard distinctly, and they beg mother to try and see if they cannot hear it again. By this time the dust is laid in the nursery, and by changing the games a little, or telling them a story first, the mother is able to leave a nursery full of quiet, happy children. Now if we, who would like to live happily and keep well, according to plain common sense, can put ourselves with intelligent humility in the place of these little children and study to be quiet, we will be working for that background which is never failing in its possibilities of increasing light and warmth and the expanse of outlook. First with regard to a quiet body. Indigestion makes us unquiet, therefore we must eat only wholesome food, and not too much of it, and we must eat it quietly. Poor breathing and poor blood makes us unquiet, therefore we should learn to expand our lungs to their full extent in the fresh air and give the blood plenty of oxygen. Breathing also has a direct effect on the circulation and the brain, and when we breathe quietly and rhythmically, we are quieting the movement of our blood as well as opening the channels so that it can flow without interruption. We are also quieting our brain and so our whole nervous system. Lack of exercise makes us unquiet, because exercise supplies the blood more fully with oxygen and prevents it from flowing sluggishly, a sluggish circulation straining the nervous system. It is therefore important to take regular exercise.