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from Rome, he had made the journey through Orvieto, in order to see that marble façade of the Duomo, a work greatly celebrated, wrought by the hands of diverse masters and held to be something notable in those times; and how, in passing afterwards by Cortona, he entered the Pieve and saw a very beautiful ancient sarcophagus, whereon there was a scene in marble—a rare thing then, when there had not been unearthed that abundance which has been found in our own day. And as Donato went on to describe the method that the master of that work had used in its execution, and the finish that was to be seen therein, together with the perfection and the excellence of the workmanship, Filippo became fired with an ardent desire to see it, and went off on foot just as he was, in his mantle, cap, and wooden shoes, without saying where he was going, and allowed himself to be carried to Cortona by the devotion and love that he bore to art. And having seen the sarcophagus, and being pleased with it, he made a drawing of it with the pen, and returned with that to Florence, without Donato or any other person knowing that he had been away, for they thought he must have been drawing or inventing something.

      Having thus returned to Florence, he showed him the drawing of the sarcophagus, which he had made with great patience, whereat Donato marvelled not a little, seeing how much love Filippo bore to art. After this he stayed many months in Florence, where he kept making models and machines in secret, all for the work of the cupola, exchanging jokes the while with his fellow-craftsmen—for it was then that he played the jest of "the Fat Man and Matteo"—and going very often, for recreation, to assist Lorenzo Ghiberti in polishing some part of his doors. But hearing that there was some talk of providing engineers for the raising of the cupola, and being taken one morning with the idea of returning to Rome, he went there, thinking that he would be in greater repute and would be more sought for from abroad than he would be if he stayed in Florence. When he was in Rome, therefore, the work came to be considered, and so, too, the great acuteness of his intellect, for he had shown in his discourse such confidence and such courage as had not been found in the other masters, who, together with the builders, were standing paralyzed and helpless, thinking that no way of raising the cupola could ever be found, nor beams to make a bridge strong enough to sustain the framework and the weight of so great an edifice; and having determined to make an end of the matter, they wrote to Filippo in Rome, praying him to come to Florence. He, desiring nothing better, returned with great readiness; and the Wardens of Works of S. Maria del Fiore and the Consuls of the Guild of Wool, assembling on his arrival, explained to Filippo all the difficulties, from the greatest to the smallest, which were being raised by the masters, who were in his presence at the audience together with them. Whereupon Filippo spoke these words: "My Lords the Wardens, there is no doubt that great enterprises ever present difficulties in their execution, and if any ever did so, this of yours presents them, and even greater than perchance you are aware of, for the reason that I do not know whether even the ancients ever raised a vault so tremendous as this will be; and although I have often pondered over the framework necessary both within and without, and how it may be possible to work at it securely, I have never been able to come to any resolution, and I am aghast no less at the breadth than at the height of the edifice, for the reason that, if it could be made round, we might use the method used by the Romans in raising the dome over the Pantheon in Rome, that is, the Ritonda, whereas here we must follow the eight sides, and bind the stones together with ties and by dove-tailing them, which will be something very difficult. But remembering that this is a temple consecrated to God and to the Virgin, I am confident, since this is being done in memory of her, that she will not fail to infuse knowledge where it is lacking, and to give strength, wisdom, and genius to him who is to be the author of such a work. But how can I help you in this matter, since the task is not mine? I tell you, indeed, that if the work fell to me, I would have resolution and courage enough to find the method whereby the vault might be raised without so many difficulties; but as yet I have given no thought to it, and you would have me tell you the method! And when at last your Lordships determine to have it raised, you will be forced not only to make trial of me, for I do not think myself able to be the sole adviser in so great a matter, but also to spend money and to ordain that within a year and on a fixed day many architects shall come to Florence, not merely Tuscans and Italians, but Germans, French, and of every other nation; and to propose this work to them, to the end that, after discussing and deciding among so many masters, it may be begun, being entrusted to him who shall give the most direct proof of ability or possess the best method and judgment for such an undertaking. Nor could I give you other counsel or a better plan than this."

      The plan and the counsel of Filippo pleased the Consuls and the Wardens of Works, but they would have liked him in the meanwhile to have made a model and to have given thought to the matter. But he showed that he cared nothing for it; nay, taking leave of them, he said that he had received letters soliciting him to return to Rome. Whereupon the Consuls, perceiving that their prayers and those of the Wardens did not avail to detain him, caused many of his friends to entreat him; but Filippo would not give way, and one morning (on May 26, 1417) the Wardens decreed him a present of money, which is found entered to the credit of Filippo in the books of the Office of Works; and all this was to conciliate him. But he, steadfast in his resolution, took his departure none the less from Florence and returned to Rome, where he studied continuously for that undertaking, making arrangements and preparing himself for the completion of the work, thinking, as was true, that no other than himself could carry it out. And as for his counsel that new architects should be summoned, Filippo had advanced it for no other reason but that they might serve to prove the greatness of his own intellect, and not because he thought that they would be able to vault that tribune or to undertake such a charge, which was too difficult for them. And thus much time was consumed before those architects arrived from their countries, whom they had caused to be summoned from afar by means of orders given to Florentine merchants who dwelt in France, in Germany, in England, and in Spain, and who were commissioned to spend any sum of money, if only they could obtain the most experienced and able intellects that there were in those regions from the Princes of those countries, and send them to Florence.

      By the year 1420, all these ultramontane masters were finally assembled in Florence, and likewise those of Tuscany and all the ingenious craftsmen of design in Florence; and so Filippo returned from Rome. They all assembled, therefore, in the Office of Works of S. Maria del Fiore, in the presence of the Consuls and of the Wardens, together with a select body of the most ingenious citizens, to the end that these might hear the mind of each master on the question and might decide on a method of vaulting this tribune. Having called them, then, into the audience, they heard the minds of all, one by one, and the plan that each architect had devised for that work. And a fine thing it was to hear their strange and diverse opinions about the matter, for the reason that some said that piers must be built up from the level of the ground, which should have the arches turned upon them and should uphold the wooden bridges for sustaining the weight; others said that it was best to make the cupola of sponge-stone, to the end that the weight might be less; and many were agreed that a pier should be built in the centre, and that the cupola should be raised in the shape of a pavilion, like that of S. Giovanni in Florence. Nor were there wanting men who said that it would have been a good thing to fill it with earth mingled with small coins, to the end that, when it had been raised, anyone who wanted some of that earth might be given leave to go and fetch it, and thus the people would carry it away in a moment without any expense. Filippo alone said that it could be raised without so much wood-work, without piers, without earth, without so great expenditure on so many arches, and very easily without any framework.

      It appeared to the Consuls, who were expecting to hear of some beautiful method, and to the Wardens of Works and to all those citizens, that Filippo had talked like a fool; and deriding him with mocking laughter, they turned away, bidding him talk of something else, seeing that this was the plan of a madman, as he was. Whereupon Filippo, feeling himself affronted, answered: "My Lords, rest assured that it is not possible to raise the cupola in any other manner than this; and although you laugh at me, you will recognize, unless you mean to be obstinate, that it neither must nor can be done in any other way. And it is necessary, if you wish to erect it in the way that I have thought of, that it should be turned with the curve of a quarter-acute arch, and made double, one vault within, and the other without, in such wise that a man may be able to walk between the one and the other. And over the corners of the angles of the eight sides the fabric must be bound together through its thickness by dove-tailing the stones, and its

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