H.L. Mencken (1880-1956), Prejudices: First Series, XVII: George Jean Nathan
The professor is nothing if not a maker of card-indexes; he must classify or be damned.
Arthur Stanley Pease, quoted in J.P. Elder et al., "Arthur Stanley Pease 1881-1964," Harvard Studies in Classical Philology
69 (1965) ix:
I will confess that I am by nature a collector, that I began with marbles and horse-chestnuts, advanced to postage stamps, continued with botany and books, and at all times have gathered facts and occasionally ideas.
These two latter items, in lack of sufficient cranial space for dead storage, I enter methodically on 3 x 5 slips of paper. When enough of a kind are amassed, they are outspread, classified, digested, written down, dehydrated, and lo! an article, or more rarely a book, to be perused by some lone watcher in Czechoslovakia or beside the Bay of Biscay.