ABSTRACT
Restraint upon motor discharge (upon action), which then became necessary, was provided by means of the process of thinking, which was developed from the presentation of ideas. Thinking was endowed with characteristics which made it possible for the mental apparatus to tolerate an increased tension of stimulus while the process of discharge was postponed. It is essentially an experimental kind of acting, accompanied by displacement of relatively small quantities of cathexis together with less expenditure (discharge) of them. For this purpose the conversion of freely displaceable cathexes into ‘bound’ cathexes was necessary ... . (Freud, 1911b, p. 221)
