Very often, before the parents could ever imagine their child's inclination towards things of a serious nature, the child happens to have already experienced them, while being absolutely ignorant of the consequences. The younger generation seems to be declining every day in physical health, in enthusiasm, compared with the people of the past. So it is most necessary that in the present age special care should be taken to ensure that youth is trained to realize the great importance in life of good physical health, upon which depend happiness, prosperity, and success.