A book is a fragile creature, it suffers the wear of time, it fears rodents, the elements and clumsy hands. so the librarian protects the books not only against mankind but also against nature and devotes his life to this war with the forces of oblivion.
The poor man wishes to conceal his poverty, and the rich man his wealth: the former fears lest he be despised, the latter lest he be plundered.