“Neurosis is the result of a conflict between the ego and its id, whereas psychosis is the analogous outcome of a similar disturbance in the relation between the ego and its environment (outer world).”
“A transference neurosis corresponds to a conflict between ego and id, a narcissistic neurosis corresponds to that between between ego and super-ego, and a psychosis to that between ego and outer world.”
“In this way the ego detaches itself from the external world. It is more correct to say: Originally the ego includes everything, later it detaches from itself the external world. The ego-feeling we are aware of now is thus only a shrunken vestige of a far more extensive feeling - a feeling which embraced the universe and expressed an inseparable connection of the ego with the external world.”
“Where id is, there shall ego be”
“Humanity has in the course of time had to endure from the hands of science two great outrages upon its naive self-love. The first was when it realized that our earth was not the center of the universe, but only a tiny speck in a world-system of a magnitude hardly conceivable; this is associated in our minds with the name of Copernicus, although Alexandrian doctrines taught something very similar. The second was when biological research robbed man of his peculiar privilege of having been specially created, and relegated him to a descent from the animal world, implying an ineradicable animal nature in him: this transvaluation has been accomplished in our own time upon the instigation of Charles Darwin, Wallace, and their predecessors, and not without the most violent opposition from their contemporaries. But man's craving for grandiosity is now suffering the third and most bitter blow from present-day psychological research which is endeavoring to prove to the ego of each one of us that he is not even master in his own house, but that he must remain content with the veriest scraps of information about what is going on unconsciously in his own mind. We psycho-analysts were neither the first nor the only ones to propose to mankind that they should look inward; but it appears to be our lot to advocate it most insistently and to support it by empirical evidence which touches every man closely.”
“We can postulate that there must be diseases founded on a conflict between ego and super-ego. Analysis gives us the right to infer that melancholia is the model of this group, and then we should put in a claim for the name of "narcissistic psychoneuroses" for these disorders.”