[Footnote 1: While the evidence in this field has been taken largely from extremely pathological cases, the distortions and perversions of mental behavior, noticeable in such cases, are simply extreme forms of the type of distortion that takes place in the case of normal individuals whose desires are seriously frustrated. See the very clear statement on the subject of "repressions" and "conflicts" in R. B. Hart's _Psychology of Insanity_.] The facts enumerated above should make it clear why it is difficult to modify, much less completely to overcome, these strong original drives to action. They serve to emphasize the fact that by control of instinctive responses is not meant their suppression. For just as instinctive tendencies are our basic instruments of action, so instinctive desires are our basic ingredients of happiness. Just as all we can do is limited by the mechanisms with which we are endowed, so what we want is ultimately determined by the native desires with which we are born. The control of action and of desire is justified in so far as such control will the more surely promote a harmonious satisfaction of all our desires. A society whose arrangements are such that instincts are, on the whole, being repressed rather than stimulated and satisfied, is frustrating happiness rather than promoting it. At the very least, a life whose natural impulses are not being fulfilled is a life of boredom. The ennui which is so often and so conspicuously associated with the routine and desolate "gayeties" of society, the listlessness of those bored with their work or their play, or both, are symptoms of social conditions where the native endowments of man are handicaps rather than assets, dead weights rather than motive forces. It means that society is working against rather than with the grain. Discontent, ranging from mere pique and irritability to overt violence, is the penalty that is likely to be paid by a society the majority of whose members are chronically prevented from satisfying their normal human desires. No one who has seen whole lives immeasurably brightened by the satisfaction of a suitable employment, or melancholy and irritability removed by companionship and stimulating surroundings, can fail to realize how important it is to happiness that human instincts be given generous opportunity for fulfillment.