"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
38 Forgetting of impressions and resolutions40 Forgetting of impressions and resolutionsForgetting of impressions and resolutions"Forgetting of impressions and resolutions" by Sigmund Freud
Cases in which we forget to carry out actions which we have promised to do as a favor for others can similarly be explained as antagonism to conventional duty and as an unfavorable inward opinion. Here it regularly proves correct, inasmuch as the only person appealed to believes in the excusing power of forgetfulness, while the one requesting the favor has no doubt about the right answer: he has no interest in this matter, otherwise he would not have forgotten it.
There are some who are noted as generally forgetful, and we excuse their lapses in the same manner as we excuse those who are short-sighted when they do not greet us in the street.