It is a well-known principle of evolution that the higher the animal in the scale of life the longer must be the period of infancy. That is, the higher the mental and social organism the longer it takes for the new individual to grow to full membership in it. The human infant has the longest period of helplessness because he has most to learn. Following out this principle, the higher our form of society becomes the more intelligence and responsibility it requires of its members, and hence the longer must be the formative period during which they are getting ready to meet these requirements. A civil engineer, for example, must master a far greater body of knowledge now than fifty years ago. It is true that specialized industry offers many occupations which, though they contribute to a complex whole, are in themselves very simple, such as tending the automatic machinery by which screws are made. But it cannot be regarded as a permanent condition that intelligent labor should be employed at work of this kind. Intelligence is greatly needed; there is never enough of it; and to leave it unused is bad management. “A man is worth most in the highest position he can fill.” Mechanical work should be done by machines, and will be so done more and more as men are trained for something higher. The lack of such training I take to be one of the main reasons why men are kept at tasks which do not use their intelligence. And even at such tasks they are rarely efficient unless they understand the meaning of what they are doing, so that they can fit it into the process as a whole. The man who lacks comprehension and adaptability is of little use; and it is precisely to gain these that preparation is required. Moreover, beyond the technical requirements, we have the need that a man should be prepared for social function of a larger sort, to make his way in the vast and open field of modern life, to find his job, to care for his family, to perform his duties as a citizen. That many are plunged into the stress and confusion of life without such a preparation is an evil of the same nature as when recruits are sent into battle without previous instruction and discipline. The process of learning in action will be destructive. In early childhood, opportunity means all kinds of healthy growth—physical, mental, moral, social. This, no doubt, is best secured through a good family. But we cannot have good families without a good community, and so it calls for general measures to create and maintain standards of life. It seems a simple truth, but is one which we disregard in practice, that “equality of opportunity” cannot exist, or begin to exist, except as it extends to little children, and that it cannot extend to them except through a somewhat paternal, or maternal, vigilance on the part of society.