§ 25. This activity of the mind in allowing itself to be absorbed, and consciously so, in an object with the purpose of making it his own, or of producing it, is _Work_. But when the mind gives itself up to its objects as chance may present them or through arbitrariness, careless as to whether they have any result, such activity is _Play_. Work is laid out for the pupil by his teacher by authority, but in his play he is left to himself. § 26. Thus work and play must be sharply distinguished from each other. If one has not respect for work as an important and substantial activity, he not only spoils play for his pupil, for this loses all its charm when deprived of the antithesis of an earnest, set task, but he undermines his respect for real existence. On the other hand, if he does not give him space, time, and opportunity, for play, he prevents the peculiarities of his pupil from developing freely through the exercise of his creative ingenuity. Play sends the pupil back refreshed to his work, since in play he forgets himself in his own way, while in work he is required to forget himself in a manner prescribed for him by another. ——Play is of great importance in helping one to discover the true individualities of children, because in play they may betray thoughtlessly their inclinations. This antithesis of work and play runs through the entire life. Children anticipate in their play the earnest work of after life; thus the little girl plays with her doll, and the boy pretends he is a soldier and in battle.—— § 27. Work should never be treated as if it were play, nor play as if it were work. In general, the arts, the sciences, and productions, stand in this relation to each other: the accumulation of stores of knowledge is the recreation of the mind which is engaged in independent creation, and the practice of arts fills the same office to those whose work is to collect knowledge. § 28. Education seeks to transform every particular condition so that it shall no longer seem strange to the mind or in anywise foreign to its own nature. This identity of consciousness, and the special character of anything done or endured by it, we call Habit [habitual conduct or behavior]. It conditions formally all progress; for that which is not yet become habit, but which we perform with design and an exercise of our will, is not yet a part of ourselves.