" A good deal of what has been said may be objected to on the ground that the unpleasant obsessive ideas are themselves quite conscious. But there is no doubt that before becoming conscious they have been through the process of repression. In most of them the actual wording of the aggressive instinctual impulse is altogether unknown to the ego, and it requires a good deal of analytic work to make it conscious. What does penetrate into consciousness is usually only a distorted substitute which is either of a vague, dream-like and indeterminate nature or so travestied as to be unrecognizable. Even where repression has not encroached upon the content of the aggressive impulse it has certainly got rid of its accompanying affective character. As a result, the aggressiveness appears to the ego not to be an impulsion but, as the patients themselves say, merely a ‘thought’ which awakens no feeling. "

― Sigmund Freud , Inhibitions, Symptoms and Anxiety