"Borges was already considered a sort of genius but “a writer for writers,” nobody else would be able to understand his stories. Or buy his books, for that matter. Much later things changed dramatically, and now his oeuvre is a worldwide reference. One could write forever about this phenomenon. And many many books have been written: Borges and mathematics, Borges and the Kabbala, and so on."
January 1, 1970
https://en.wikiquote.org/wiki/Jorge_Luis_Borges