It seems to me that we have to draw the line in sibling rivalry whenever rivalry goes out of bounds into destructive behavior of aphysical or verbal kind. The principle needs to be this: Whatever the reasons for your feelings you will have to find civilized solutions.
Selma FraibergMental health depends upon the maintenance of a balance within the personality between the basic human urges and egocentric wisheson the one hand and the demands of conscience and society on the other hand.
Selma FraibergThe parent who loves his child dearly but asks for nothing in return might qualify as a saint, but he will not qualify as a parent. For a child who can claim love without meeting any of the obligations of love will be a self-centered child and many such children have grown up in our time to become petulant lovers and sullen marriage partners because the promise of unconditional love has not been fulfilled.
Selma FraibergLanguage makes it possible for a child to incorporate his parents' verbal prohibitions, to make them part of himself....We don't speak of a conscience yet in the child who is just acquiring language, but we can see very clearly how language plays an indispensable role in the formation of conscience. In fact, the moral achievement of man, the whole complex of factors that go into the organization of conscience is very largely based upon language.
Selma FraibergThere must be a solemn and terrible aloneness that comes over the child as he takes those first independent steps. All this is lost to memory and we can only reconstruct it through analogies in later life....To the child who takes his first steps and finds himself walking alone, this moment must bring the first sharp sense of the uniqueness and separateness of his body and his person, the discovery of the solitary self.
Selma FraibergThe child begins life as a pleasure-seeking animal; his infantile personality is organized around his own appetites and his own body. In the course of his rearing the goal of exclusive pleasure seeking must be modified drastically, the fundamental urges must be subject to the dictates of conscience and society, urges must be capable of postponement and in some instances of renunciation completely.
Selma Fraiberg