• It is clear that there is no classification of the Universe that is not arbitrary and full of conjectures. The reason for this is very simple: we do not know what kind of thing the universe is.

    Jorge Luis Borges: It is clear that there is no classification of the Universe that is not arbitrary and full of conjectures. The reason for this is very simple: we do not know what kind of thing the universe is.
    "The Analytical Language of John Wilkins" by Jorge Luis Borges, translated by Will Fitzgerald, 1952.