ABSTRACT
It is readily apparent upon a moment’s reflection that there are two distinct types of mental processes going on in our minds, and obeying two entirely different general laws or principles. The one type of thinking, which is represented in its most highly developed form by reasonings, judgments and various sorts of intellectual work, takes place in accordance with what Freud calls the Reality Principle. The other, most familiarly exemplified by day-dreaming, is governed by what he has termed the Principle of Pain and Pleasure, or, more briefly, the Pleasure Principle.
