"You, the rich, how far will you push your frenzied greed? . . . When giving to the poor, you are not giving him what is yours; rather, you are paying him back what is his. Indeed, what is common to all, and has been given to all to make use of, you have usurped for yourself alone. The earth belongs to all, and not only to the rich . . . You are paying him back, therefore, your debt; you are not giving gratuitously what you do not owe."