Dialogue must appear realistic without being so. Actual realism-the lifting, as it were, of passages from a stenographer's take-down of a 'real life' conversation-would be disruptive. Of what? Of the illusion of the novel. In 'real life' everything is diluted; in the novel everything is condensed.
Elizabeth Bowen... in nine out of ten cases the original wish to write is the wish to make oneself felt[ellipsis in source] the non-essential writer never gets past that wish.
Elizabeth Bowen