Some of the pathological motor habits, such as the tics, often have a curious background. The most common tics are snuffing, blinking, shaking of the head, facial contortions of one kind or another. These arise usually under exciting conditions or in the excitable, sometimes in the acutely self-conscious. Frequently they represent a motor outlet for this excitement; they are the motor analogues of crying, shouting, laughing, etc. (Indeed, a common habit is the one so frequently heard,--a little laugh when there is no feeling of merriment and no occasion for it.) Motor activity discharges tension and is pleasurable and these tics furnish a momentary pleasure; they relieve a feeling that some of the victims compare to an itch and the habit thus is based on a seeking of relief, even though that relief is obtained in a way that distresses the more settled purposes of the individual. In the establishment of good habits, those desirable from the point of view of the important issues of life, training is of course essential. But in the training of children, certain things must be kept in mind: the usefulness, the practical value must be presented to the child's mind in a way he can understand, or else various ways of energizing him to help in the formation of the habit must be used--praise and blame, reward and punishment. Further, these habits are not to be held holy; cleanliness and method are desirable acquisitions but not so desirable as a feeling of freedom to play and experiment with life and things. If the child is constantly worried lest he get too dirty, or fears to play in his room because he may disorder it, he is forming the good habits of cleanliness and method but also the worse one of worry. In the breaking of a bad habit, its root in desire and difficulty must be discovered. Often enough a man does not face the source of his trouble, preferring not to. I am not at all sure that it is best in all cases for a man to know his own weakness; in fact, I feel convinced to the contrary in some cases. But in the majority of difficulties, self-revelation is salutary and makes an intelligent coping with the situation possible. Here is the value of the good friend, the respected pastor, the wise doctor. The human being will always need a confessor and a confidante, and he who is struggling with a habit is in utmost need of such help. Shall the struggler with a bad habit break it with its thralldom? Shall he say to his chains, "From this time, nevermore!" To some men it is given to win the victory this way, to rise to the heights of a stubborn resolution and to be free. But not to many is this possible. To others there is a long history of repeated effort and repeated failures and then--one day there comes a feeling of power, perhaps through a great love, a great cause, a sermon heard, a chance sentence, or a bitter experience, and then, like a religious conversion, the tracks of the old habit are obliterated, never to be used again.