Nor does the mischief done by jealousy in the case of nervously inclined children stop here. It is particularly important for parents to know that there may be a postponement of its evil effects. That is, though the jealous child, while a child, may not show more than a general nervousness and may seemingly outgrow his jealousy without ill effect, it is entirely possible that in later life mental or nervous troubles may appear as a result of the subconscious retention of the jealous notions that have long since vanished from conscious remembrance. I might cite a number of instances strikingly illustrative of this, but will be content with giving only one--the case of a man about thirty years old, who did not dare go outdoors because he was obsessed by a fear that he would kill the first person he met in the street. "My life," he told the physician whose aid he sought, "is one long torment. There are days when I have myself locked in my room, as I cannot venture on the street with the murderous longings that fill my mind. I spend much of my time planning alibis to escape the consequences of the murder I feel sure I shall commit. Is there any hope for me, short of imprisonment in an asylum for the dangerously insane?" This man, as his answers to the specialist's questions made clear, was actually of a splendid character and highly cultured. His one peculiarity was this dangerous obsession. Psychological analysis to trace its origin was undertaken, and led back to his childhood. It had, as the setting giving it force and keeping it alive, a deep-seated jealousy of his father, experienced before the age of seven. More specifically, it originated in a murderous wish, entertained one day when father and son were walking together, to push his father from a mountain-top into an abyss. The child had at once recognised that this wish was wicked. He had violently repressed it, had tried to forget it, and had seemingly succeeded in doing so. But in his neurotic subconsciousness it had remained alive, to incubate and grow, until it finally blossomed into the murderous and painfully persistent obsession against people in general. Surely, it is worth while to watch for and eradicate jealousy in childhood. Surely, too, it is worth while to develop emotional control in your children while they still are very young, and to avoid giving reason for jealousy by showing a real neglect in satisfying their natural craving for sympathy and love. On the other hand, it is equally important to avoid being over-attentive to them. This, as brought out in detail in the second chapter, is the great danger to be feared when there is only one child in the family, the exuberance of the parental love filling the child with exaggerated ideas of his own importance that are sure to be rudely jostled when he comes into contact with other children.