Though the differences in human lives are countless, there are certain great likenesses. All have life, needs, possibilities; they all grow and develop in the same general way. From these common likenesses have been formulated a few principles which are as helpful to a child gardener as a knowledge of the laws of plant life to one who nurtures roses and carnations. Their understanding is not dependent upon physical parenthood. God will interpret the meaning to any one whom He calls into fellowship with Himself in the matchless work of soul culture. I. The First Principle deals with the nature of life--What is it? Some answer must be given in order to arrive at an aim, a method, and an inspiration for work. If a child is only a beautiful figure upon which to display dainty garments, the mother has a plain pathway marked out for her. If a boy is a capacity to be filled, or a machine to grind out facts or dollars, the teacher's course of action is clear. God's conception of life is surely greater than these, yet He never gave a definition. Jesus said it is more than meat, that it is worth more than all the world, that it does not consist in abundance of things, that it is eternal, but He nowhere tells us what it is, for He can not. It is a part of God. He can only make us understand it in any wise by giving its characteristics and values. Perhaps these may come to us more clearly through considering first what life is not. 1. Life is not merely "plastic clay" to be moulded, or a "block of marble" to be hewn according to the will of the sculptor. This poetic conception emphasizes rightly the tremendous power of environment and personality in shaping character, but it is really a dangerous half truth. If the child were a block of marble, he would be no different from the dead, inert lump that lies in the studio awaiting the will of the sculptor. They would both be things. But a child has life, and the difference between life and thing lies in an inner power or activity which life possesses and uses when and as it will. This activity has to be reckoned with. Sun and rain and earth can not make a plant grow if it does not use its own mysterious inner force upon them. No sort of influence can affect a life, if the life does not respond to it. This response will be either receiving or rejecting the influences that come, working with or against them. Assuredly this is a condition very different from "plastic clay." Two great tasks, therefore, are included in the work of nurture: the first, to see that all that comes to plastic life from the outside is what it ought to be; the second, to somehow arouse the power within to vigorous effort upon the best things. 2. Life is not a "pure white page," even in its beginning.