"They and the books called scholarly are taken as signs of a knowledge explosion. It is only a knowledge inflation. The knowledge which should go into a footnote of six lines is made into an article of twelve pages; and that which should go into an article of twelve pages goes into a book of three hundred."
It is sad to see that nothing has changed in the past 40 years. How long will these e-books of our time last? Paperbacks have become better, sure, but to last for hundreds of years? What about the works with naught but one edition and only a few thousand copies printed; that essay/article written in that one magazine from the 30s, the paper completely decayed or vanished—a master-piece of another time that nobody now living has read nor will ever read. Woe to thousands of 20th century works which have been out-of-print for half a century, lost and forgotten collecting dust in attics. Ironically, most of Barzun's own books are no longer being published either; I had to order 'Of Human Freedom' from the other side of the pond, unless I wished to pay hundreds of pounds (cheapest at Amazon.UK is £155 at the moment of writing, got it for 30$ from US, including shipping/taxes).