Every choice we make is thus literally built into our character and becomes a part of ourselves. After that, the old choice will help determine the new, and we shall find ourselves being directed by all of our past choices, and even by the choices of our ancestors. Since, then, all our earlier selves are continued in us and make us what we are, we are simply studying ourselves when we study the history of our ancestors. If we would go forward, we must first look backward; for we must rise on stepping-stones of our dead selves. But history is not merely the story of the past. To relate that, would take as long as it took to live it, and the result would be but weariness of spirit. History, to be significant, must select the events with which it will deal; it must arrange these in series that are in accord with the constitution of things; and then it must use the generalizations it reaches to interpret the present, and even to forecast the future. It is obvious that this interpretation will depend on the point of view held by the interpreter. Hence we must ask in what fundamental beliefs this presentation rests. These are, first, that life tends to move along certain lines that constitute the law of human nature. Just as the infant tends first to wriggle, then creep, then walk, then run and dance, so human nature tends to move upward from savagery through primitive settled life to the complex forms of larger settled units. In this progress, material or economic forces play a large part; but ideas, originally born out of circumstances, but sometimes borrowed from other people, sometimes degenerate remnants of past utilities, also play a large part. The progress we finally make is thus directed by this human tendency, by material circumstances, and by ideas. Sometimes it keeps pretty closely to what seems to us to be upward human growth; sometimes it stagnates; sometimes it gives us perverted products; and sometimes it destroys itself. Thus it becomes necessary to trace the past experiences of woman that we may see with what heritage she faces the future. She is all that she has felt and thought and done. She started with at least half of the destiny of the race in her keeping. Handicapped in size and agility, and periodically weighted down by the burdens of maternity, she still possessed charms and was mistress of pleasures which made her, for savage man, the dearest possession next to food; and for civilized man, the companion, joy and inspiration of his days.