An intimate friend and a hated enemy have always been indispensable requirements for my emotional life; I have always been able to create them anew, and not infrequently my childish ideal has been so closely approached that friend and enemy coincided in the same person.

[The child receives impressions like] a photographic exposure that can be developed after any interval of time and transformed into a picture.

I have no concern with any economic criticisms of the communist system; I cannot inquire into whether the abolition of private property is expedient or advantageous. But I am able to recognize that the psychological premisses on which the system is based are an untenable illusion. In abolishing private property we deprive the human love of aggression of one of its instruments... but we have in no way altered the differences in power and influence which are misused by aggressiveness.

When we share - that is poetry in the prose of life.

It is always possible to bind together a considerable number of people in love, so long as there are other people left over to receive the manifestations of their aggressiveness.

Look into the depths of your own soul and learn first to know yourself, then you will understand why this illness was bound to come upon you and perhaps you will thenceforth avoid falling ill.

The analytic psychotherapist thus has a threefold battle to wage -- in his own mind against the forces which seek to drag him down from the analytic level; outside the analysis, against opponents who dispute the importance he attaches to the sexual instinctual forces and hinder him from making use of them in his scientific technique; and inside the analysis, against his patients, who at first behave like opponents but later on reveal the overvaluation of sexual life which dominates them, and who try to make him captive to their socially untamed passion.