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114 aware of the inner condemnation of such acts which realized some of our definite wish impulses. Confirmation seems superfluous here; whoever has a conscience must feel in himself the justification of the condemnation, and the reproach for the accomplished action. But this same character is evinced by the attitude of savages towards taboo. Taboo is a command of conscience, the violation of which causes a terrible sense of guilt, which is as self-evident as its origin is unknown.

It is therefore probable that conscience also originates on the basis of an ambivalent feeling from quite definite human relations which contain this ambivalence. It probably originates under conditions which are in force both for taboo and the compulsion neurosis, that is, one component of the two contrasting feelings is unconscious and is kept repressed by the compulsive domination of the other component. This is confirmed by many things which we have learned from our analysis of neuroses. In the first place the character of compulsion neurotics shows a predominant trait of painful conscientiousness which is a symptom of reaction against the temptation