The Magic Mountain
Thomas Mann
the sentence from the Snow, spoken and forgotten, and the descent into war, in Chapter VI: Naphta, the Snow, and the Death of Joachim and Chapter VII: Peeperkorn, the Great Boredom, and the Thunder.
The Posthumous Memoirs of Brás Cubas
Machado de Assis
the chimera of happiness in the delirium (chapter VII), the voluptuousness of boredom (chapter XXV), the tight boots (chapter XXXVI), Humanitism (chapter CXVII), fatigue without work (chapter CLVII), and the balance of denials (chapter CLX).
Demons
Fyodor Mikhailovich Dostoevsky
Kirillov, who wants to know why no one kills himself (Part One, Chapter III), the man who is unhappy only because he does not know he is happy (Part Two, Chapter I), the nineteen-year-old boy who kills himself in the hotel and the ladies who go to look (Part Two, Chapter V), the will that Kirillov says is his alone and on which Pyotr counts (Part Two, Chapter VI), the eternal harmony of five seconds and the boy who is born (Part Three, Chapter V), the fullest point of self-will, which is to kill oneself (Part Three, Chapter VI), Stepan, who says that without the infinitely great men would die of despair (Part Three, Chapter VII), Stavrogin, who has unlimited strength and nothing to which to apply it (Part Three, Chapter VIII), and the immeasurable suffering he seeks before Tikhon ("With Tikhon").
The Death of Ivan Ilyich
Leo Tolstoy
life as the simplest, most common, and most terrible (ch. II), the joys of play (ch. III), the voice of the soul (ch. IX), the luminous point of childhood (ch. X), the life that was not that (ch. XI), and that which can still be done (ch. XII).