W.H.R.Rivers, Instinct and the Unconscious — Chapter V. The Content of the Unconscious (1920)
“ It is thus suggested that there is the closest relation between the unconscious and instinct, that the unconscious is a storehouse of experience associated with instinctive reactions. Moreover, I have shown that suppression, the process by which the conscious becomes unconscious, itself takes place unwittingly. The question arises how far the unwitting character of a process is a mark of instinct and is associated with instinctive reactions. ”
