"Every perception is to some degree an act of creation, and every act of memory is to some degree an act of imagination."
-- Gerald Edelman, Second Nature: Brain Science and Human Knowledge
20 Forgetting of impressions and resolutions22 Forgetting of impressions and resolutionsForgetting of impressions and resolutions"Forgetting of impressions and resolutions" by Sigmund Freud
One also finds abundant indications which show that even in healthy, not neurotic, persons resistances are found against the memory of disagreeable impressions and the idea of painful thoughts.
> Note: \[A. Pick (“Zur Psychologie des Vergessens bei Geistesund Nervenkranken,” Archiv. f. Kriminal-Anthropologie u. Kriminalistik, von H. Gross) has recently collected a number of authors who realize the value of the influence of the affective factors on memory, and who more or less clearly recognize that a defensive striving against pain can lead to forgetting. But none of us has been able to represent this phenomenon and its psychologic determination as exhaustively, and at the same time as effectively, as Nietzsche in one of his aphorisms (Jenseits von Gut und Bosen, ii., Haupstuck 68) : “‘I have done that,’ says my Memory. ‘I could not have done that,’ says my Pride, and remains inexorable. Finally, my Memory yields.”\]