The hate aspect of the Œdipus complex would thus seem normally to arise in the first place as a consequence of the love aspect, the affection felt by the child towards the parent of the opposite sex bringing about a resentment at the presence of the other parent; this latter parent being looked upon as a competitor for the affections of the loved parent and a disturber of the peace of the family circle. But though in its origin the hate aspect is thus usually a secondary phenomenon, it may under suitable conditions grow to equal or even to excel in importance the love aspect from which it in the first place arose. This is especially liable to be the case when, in addition to the specific interference with the love activities of the child, the parent in question causes more general interference with the child's desires and activities, by adopting a harsh, intolerant or inconsiderate attitude towards the child in their everyday relations or as regards matters in which the child's interests and ambitions are more especially concerned. To the envy and jealousy felt towards a competitor and rival there is then added the hatred and desire for rebellion against a tyrant and oppressor; and the complex emotions thus aroused may engender a hostile sentiment of such intensity as, in some cases, to constitute one of the dominant traits of character, not only of childhood but of the whole of adult life. [Sidenote: Hatred between brothers and sisters] Only second in importance to the attitude of the child towards its parents are its relations to its brothers and sisters. Under the conditions of normal family life, brothers and sisters are, after the parents, the most important persons in the environment of the young child, and it is but natural that these persons should be among the earliest objects of the developing love and hate emotions of the child. Whereas, however, in the child's relations towards its parents, love would seem to be the emotion that is usually first evoked, in its dealings with the other junior members of the family, the opposite emotion of hate is in most cases the primary reaction. This fact can be easily explained as to a great extent a natural consequence of the necessary conditions of family life. Brothers and sisters possess claims upon the attention and affection of the loved parent (especially when that parent is the mother) which are apt to conflict seriously with one another and may on occasion be felt by the respective claimants to be almost if not quite as irksome and exorbitant as those of the other parent, whose competition with the child in this respect we have already noted. From this source there frequently arise feelings of violent jealousy between brothers and sisters, and the attitude of hostility thus evoked may be increased, or at any rate prevented from disappearing, by the fact that children of the same family have to share not only the affection of their parents but, to some extent