Changes

<blockquote>Observation of daily [[life ]] shows us that most persons have the capacity to direct a very tangible part of their [[sexual ]] motive powers to their professional or business activities. The sexual impulse is particularly suited to yield such contributions because it is endowed with the capacity of [[sublimation]], i.e., it has the [[power ]] to [[exchange ]] its nearest aim for [[others ]] of higher [[value ]] which are not sexual. We consider this [[process ]] as proved, if the [[history ]] of [[childhood ]] or the history of the [[psychic ]] [[development ]] of a person shows that in his childhood this powerful impulse was in the service of sexual interest. We consider it a further corroboration if the [[sexual life ]] of mature years evinces a striking stunting, as if a part of the sexual [[activity ]] had now been replaced by the activity of the predominant impulse. <ref>{{LDV}} Ch. 1</ref></blockquote>

<blockquote>Most of the impulses of sexual life are not of a purely [[erotic ]] [[nature ]] but arise from alloys of the erotic [[instinct ]] with components of the destructive instinct.<ref>{{OoPA}} Ch. 7</ref></blockquote>