“ There was a strange fixity in his gaze at times. Like all very absent-minded people he would sometimes stare at a person without seeing him.He was silent and rather awkward, but sometimes, when he was alone with anyone, he became talkative and effusive, and would laugh at anything or nothing. ”

THE BROTHERS KARAMAZOV
by Fyodor Mikhailovich Dostoevsky translated by Constance Garnett (A Penn State Electronic Classics Series Publication pg.28)