All activities when indulged in playfully have certain common characteristics. First, the activity is enjoyed for its own sake. The process is satisfying in itself. Results may come naturally, but they are not separated from the process; the reason for the enjoyment is not primarily the result, but rather the whole activity. Second, the activity is indulged in by the player because it satisfies some inner need, and only by indulging in it can the need be satisfied. It uses neurone tracts that were "ready." Growing out of these two major characteristics are several others. The attention is free and immediate; much energy is used with comparatively little fatigue; self-activity and initiative are freely displayed. At the other extreme of activity is drudgery. Its characteristics are just the opposite of these. First, the activity is engaged in merely for the result--the process counting for nothing and the result being the only thing of value. Second, the process, instead of satisfying some need, is rather felt to be in violation of the nature of the one engaged. It uses neurone tracts that are not "ready" and at the same time prevents the action of tracts that are "ready." It becomes a task. The attention necessarily must be of the forced, derived type, in which fatigue comes quickly as a result of divided attention, results are poor, and there is no chance for initiative. Between these two extremes lies work. It differs from play in that the results are usually of more value and in that the attention is therefore often of the derived type. It differs from drudgery in that there is not the sharp distinction between the process and the result and in that the attention may often be of the free spontaneous type. It was emphasized at the beginning of this chapter that the boundaries between the three were hazy and ill defined. This is especially true of work; it may be indistinguishable from play as it partakes of its characteristics, or it may swing to the other extreme and be almost drudgery. The difference between the three activities is a subjective matter--a difference largely in mood, in attitude of the person concerned, due to the readiness or unreadiness of the neurone tracts exercised. The same activity may be play for one person, work for another, and drudgery for still another. Further, for the same person the same activity may be play, work, or drudgery, at different times, even within the same day. Which of the three is the most valuable for educational purposes? Certainly not drudgery. It is deadening, uneducative, undevelopmental. Any phase of education, though it may be a seemingly necessary one, that has the characteristics of drudgery is valueless in itself. As a means to an end it may serve--but with the antagonistic attitude, the annoyance aroused by drudgery, it seems a very questionable means. Education that can obtain the results required by a civilized community and yet use the play spirit is the ideal.