He also forcibly expressed his views with regard to the respective powers with which the two Houses of Congress should be invested. When the Convention was drawing to a close, he urged its members in a tactful and persuasive speech to lay aside their individual disappointments, and to give their work to the world with the stamp of unanimity. As is well known, when the last members were signing, he looked towards the President's chair, at the back of which there was a representation of a rising sun, and, after observing to some of his associates near him that painters had found it difficult in their art to distinguish a rising from a setting sun, he concluded with this exultant peroration: "I have often and often, in the course of the session, and the vicissitudes of my hopes and fears as to its issue, looked at that behind the President, without being able to tell whether it was rising or setting: but now, at length, I have the happiness to know, that it is a rising and not a setting sun." And a rising sun, indeed, it was, starting out upon its splendid circuit like the sun in the lines of Charles Lamb, "with all his fires and travelling glories round him." The opinions of Franklin with regard to general political topics are always acute and interesting, and, unlike the opinions of most great men, even the greatest, are rarely, if ever, flecked by the errors of his time. In some quarters, there has been a disposition to reproach him with being an advocate of what since his day has come to be known in the United States as rag or fiat money. The reproach loses sight of the fact that the currency problems, with which he had to deal, did not turn upon the true respective functions of paper and real money, under conditions that permit their application to their several natural and proper uses. No such conditions existed in America during the colonial period or the Revolutionary War. There was no California, Alaska, Nevada, or Colorado then. "Gold and Silver," Franklin said in 1767, in his _Remarks and Facts Concerning American Paper Money_, "are not the Produce of _North-America_, which has no Mines." Every civilized community, unless it is to be remanded to mere barter, must have some kind of convenient medium for the exchange of commodities and the payment of debts, even though it be no better than wampum or tobacco. Paper money, whether it bore interest or not, and whether it was a legal tender or not, was, unsupported by any real provision for its redemption, a dangerous currency for America, in her early history, as it is for any country, whatever its state of maturity; but she had no choice. It was either that or something not even as good on the whole for monetary purposes. Not only were there no gold or silver mines in North America, but the balance of trade between the Colonies and Great Britain was so greatly in favor of the latter country that even such gold and silver coin, as found its way to them, was at once drawn off to her.