"-What does it mean "worth", mister Nutt?- -It means that you leave the world better than when you found it-" "-Cosa significa "valore", signor Nutt?- -Significa che lasci il mondo migliore di quando l'hai trovato-" from Unseen Academicals, by Terry Pratchett (2009, UK) [ac, 2009] http://rubidu-2009.blogspot.it/