And, finally, in the third place, there is a more spontaneous and intrinsically personal type of interest which is very largely independent of suggestion or authority. A thing of beauty, a new author, a new acquaintance, a new sport or game, a new convenience or mechanical device may challenge one's curiosity and powers of appreciation, may seem to offer a new facility in action or some unimagined release from labor or restriction. The adventure of marriage and parenthood, the intimate attraction of great music, the mystery of an unknown language or a forbidden country, the disdainful aloofness of a mountain peak dominating a landscape are conspicuous instances inviting a more spontaneous type of constructive interest that finds abundant expression also in the more commonplace situations and emergencies of everyday life. It is sheer play upon words to speak in such cases of a pleasure of adventurousness, a pleasure of discovery, a pleasure of conquest and mastery, assigning this as the motive in order to bring these interests to the type that fits addiction to one's particular old coat or easy-chair. The specific "pleasure" alleged could not exist were the tendency not active beforehand. While the same is true in a sense for habitual concrete pleasures in relation to their corresponding habits, the irreducible difference in constructive interest as a type lies in the _transition_ which this type of interest purposes and effects from one level of concrete or substantive desire and pleasure to another. Here one consciously looks to a result that he cannot foresee or foretell; in the other type his interest as interest goes straight to its mark, sustained by a confident forecast.[51]