23. From all these arguments it will be possible to conclude whether they are as well adapted to free commerce [of these islands] with the kingdom of Peru, and to that which the two Americas can mutually and reciprocally conduct between each other, in order that all the vassals may have a share in the extension of the commerce which hitherto has been prohibited to them; that the products of all the provinces may be increased, by the market which will be provided for them; that the Southern [i.e., Pacific] coasts of the said Americas may have an abundance of vessels; that they may mutually aid and defend each other from enemies; that by this means all our dominions remote from España may be more securely preserved; that our silver may have wide circulation among the Spaniards, who, occupied in this lawful traffic, will not expose their money to the risks of the illicit commerce; that the commerce of the foreigners may be diminished, without the least loss to the royal exchequer in the duties from them; and, in fine, that with the gains [from this commerce], and with the decreased exportation of silver to the foreign kingdoms of Europa, the prosperity of our monarchy may begin, and it may come to be the most worthy of respect in all the world, with the extension of its commerce--which is the sole and only means of attaining success; for no other means has been found more effectual, by either ancient or modern geniuses. Chapter Sixth: Of the difficulties which the aforesaid company will encounter, in order to establish and continue its commerce; and of the method for preventing these. 1. The difficulties and inconveniences which the celebrated Don Miguel de Zabala mentions, and the manner in which he entirely removes them, ought to be borne in mind in this chapter (like all the rest that that great man wrote), in regard to the establishment of our commerce through companies, in order that by the said work, and by what I have set forth, even the dullest person may be convinced of the usefulness of the Spanish company in these islands. Notwithstanding that the principal difficulty, and the only one to be feared, is the efforts of the foreign powers, I will copy exactly the remarks of the said author, for perhaps not all those who see this document will have [opportunity to see] them; and I cannot dispel these fears with arguments more weighty, or persuasion more effective.