“Now, when he stood with his forehead against the window or suddenly stopped on the third black tile, he made unexpected discoveries. He found out that those processes wrongly known as ‘monologues’ are really dialogues of a special kind; dialogues in which one partner remains silent while the other, against all grammatical rules, addresses him as ‘I’ instead of ‘you,’ in order to creep into his confidence and to fathom his intentions; but the silent partner just remains silent, shuns observation and even refuses to be localized in time and space.
“Now, however, it seemed to Rubashov that the habitually silent partner spoke sometimes, without being addressed and without any visible pretext; his voice sounded totally unfamiliar to Rubashov, who listened in honest wonder and found that his own lips were moving. These experiences held nothing mystic or mysterious; they were of a quite concrete character; and by his observations Rubashov gradually became convinced that there was a thoroughly tangible component in this first person singular, which had remained silent through all these years and now had started to speak.”
—Darkness at Noon