longer the habituation, the more unbroken the habit, and the more nearly it coincides with previous habitual forms of the life process, the more persistently will the given habit assert itself. The habit will be stronger if the particular traits of human nature which its action involves, or the particular aptitudes that find exercise in it, are traits or aptitudes that are already largely and profoundly concerned in the life process or that are intimately bound up with the life history of the particular racial stock.
The varying degrees of ease with which different habits are formed by different persons, as well as the varying degrees of reluctance with which different habits are given up, goes to say that the formation of specific habits is not a matter of length of habituation simply. Inherited aptitudes and traits of temperament count for quite as much as length of habituation in deciding what range of habits will come to dominate any individual's scheme of life. And the prevalent type of transmitted aptitudes, or in other words the type of temperament belonging to the dominant ethnic element in any community, will go far to decide what will be the scope and form of expression of the community's habitual life process. How greatly the transmitted idiosyncracies of aptitude may count in the way of a rapid and definitive formation of habit in individuals is illustrated by the extreme facility with which an all-dominating habit of alcoholism is sometimes formed; or in the similar facility and the similarly inevitable formation of a habit of devout observances in the case of persons gifted with a special aptitude in that direc-
