“In Kafka we have before us the modern mind splendidly trained for the great game of pretending that the world it comprehends in sterilized sobriety is the only and ultimate reality there is—yet a mind living in sin with the soul of Abraham. Thus he knows two things at once, and both with equal assurance: that there is no God, and that there must be a God. It is the perspective of the curse: the intellect dreaming of its dream of absolute freedom, and the soul knowing of its terrible bondage.”
—Erich Heller
 
“It is likely that these journals will be regarded as one of [Kafka’s] major literary works; his life and personality were perfectly suited to the diary form, and in these pages he reveals what he customarily hid from the world.”
—The New Yorker