Habit is so intimately a part of all traits and abilities that we would be anticipating several chapters of this book did we go into all the habit types. Social conditions, desire, fatigue, monotony, purpose, intelligence, inhibition, all enter into habit and habit formation. Youth experiments with habit; old age clings to it. Efficiency is the result of good habits but originality is the reward of some who discard habits. A nation forms habits which seem to be part of its nature, until emigration to another land shows the falsity of this belief. So with individuals: a man feels he must eat or drink so much, gratify his sex appetite so often, sleep so many hours, exercise this or that amount, seek his entertainment in this or that fashion,--until something happens to make the habit impossible and he finds that what he thought a deeply rooted mode of living was a superficial routine. Though good habits may lead to success they may also bar the way to the pleasures of experience; that is their danger. A man who finds that he must do this or that in such a way had better beware; he is getting old, no matter what his age.[1] For we grow older as we lose mobility,--in joints, muscles, skin and our ways of doing, feeling and thinking! It is a transitory stage of the final immobility of Death. [1] Says the talkative Autocrat of the Breakfast Table: "There is one mark of age that strikes me more than any of the physical ones; I mean the formation of Habits. An old man who shrinks into himself falls into ways that become as positive and as much beyond the reach of outside influences as if they were governed by clock work." We have not considered the pathological habits, such as alcoholism, excessive smoking and eating, perverse sex habits. The latter, the perverse sex habits, will be studied when discussing the sex feelings and purposes in their entirety. Alcoholism is not yet a dead issue in this country though those who are sincere in wishing their fellows well hope it soon will be. It stands, however, as a sort of paradigm of bad habit- forming and presents a problem in treatment that is typical of such habits. Not all persons have a liability to the alcoholic habit. For most people lack of real desire or pleasure prevented alcoholism. The majority of those who drank little or not at all were not in the least tempted by the drug. "Will power" rarely had anything to do with their abstinence and the complacency with which they held themselves up as an example to the drunken had all the flavor of Phariseeism. To some the taste is not pleasing, to others the immediate effects are so terrifying as automatically to shut off excess. Many people become dizzy or nauseated almost at once and even lose the power of locomotion or speech.