W.H.R.Rivers, Instinct and the Unconscious — Chapter III. Suppression (1920)
“ I have now to consider a characteristic of active forgetting and suppression which is of great importance in understanding its nature. The experience which tends to be forgotten or repressed is the immediately painful. If we forget an appointment or a letter in connection with which we anticipate unpleasant emotions, the ultimate consequences may be even more unpleasant than the immediate experience from which we escape by the act of forgetting. ”
