The periods of education distinguished by Aristotle are: (1) Childhood, extending from birth to the end of the seventh year, and spent in healthy growing and, latterly, in preparation for discipline; (2) Boyhood, from the beginning of the eighth year to the advent of puberty, devoted to the lighter forms of discipline, bodily and mental; (3) Youth, from the age of puberty to the end of the twenty-first year, occupied with the severer forms of discipline; (4) Manhood, devoted to State duties. All these are but preparations for the divine life of the soul. We shall treat these in order, including the second and third under one head. CHAPTER V EDUCATION DURING THE FIRST SEVEN YEARS Suffer no lewdness or indecent speech The apartment of tender youth to reach.--Juvenal. Le cœur d'un homme vierge est un vase profond-- Lorsque la première eau qu'on y verse est impure, La mer y passerait sans laver la souillure; Car l'abîme est immense, et la tache est au fond. --Alfred de Musset. The State must begin the education of children before their birth; indeed, before the marriage of their parents. It must see that only persons of robust constitutions marry. Athletes are not suited for marriage, neither are weaklings. The best age for marriage is thirty-seven for a man, and eighteen for a woman. During their pregnancy women must take special care of their health, living on light food, and taking short walks. The State should make a law that they visit the temples of certain gods every day, and offer up a prayer of thanksgiving for the honor conferred upon them. They must carefully avoid all forms of emotional excitement. When defective children are born, they must be exposed or destroyed. The State must determine what number of children each married couple may have, and, if more than this number are begotten, they must be destroyed either before or after birth. "As soon as children are born, it ought to be remembered that their future strength will depend greatly upon the nourishment supplied to them." A milk diet is best, and wine must be avoided. "It is likewise of great importance that children should make those motions that are appropriate to their stage of development.... Whatever it is possible to inure children to, they ought to be subjected to from the very outset, and gradual progress to be made. Children, on account of their high natural warmth, are the proper subjects for inurement to cold. These and other points of the same nature are what ought to be attended to in the first years of the child's life. In the following years, up to the age of five, while children ought not to be subjected to any instruction or severe discipline, for fear of impeding their growth, they ought to take such exercises as shall guard their bodies from sluggishness. This may be secured by other forms of activity as well as by play. Care must be taken that their games shall be neither unrefined, laborious, nor languid.