We possess the Canon because we are mortal and also rather belated. There is only so much time, and time must have a stop, while there is more to read than there ever was before. From the Yahwist and Homer to Freud, Kafka, and Beckett is a journey of nearly three millennia. Since that voyage goes past harbors as infinite as Dante, Chaucer, Montaigne, Shakespeare, and Tolstoy, all of whom amply compensate a lifetime's rereadings, we are in the pragmatic dilemma of excluding something else each time we read or reread extensively.
Harold Bloom (2014). “The Western Canon”, p.45, Houghton Mifflin Harcourt