But in the same chapter he lets the reader into the secret of his system of prophecy, and displays it as simply an affair of common-sense, one recommended by Aristotle as the only trustworthy method of divining future events. Cardan writes: "I used to inquire what might be the exact nature of the business in hand, and began by making myself acquainted with the character of the locality, the ways of the people, and the quality of the chief actors. I unfolded a vast number of historical instances, leading events and secret transactions as well, and then, when I had confirmed the facts set forth by my method of art, I gave my judgment thereupon."[244]
In his latter years Cardan must have been in easy circumstances. The pension from the Pope—no mention is made of its amount—and the fees he received from his patients allowed him to keep a carriage; and writing in his seventy-fifth year, he says that no fees would tempt him to join any consultation unless he should be well assured what sort of men he was expected to meet.[245]
In the Norma Vitæ Consarcinata[246] he relates how in April 1576 there were two inmates of the Xenodochium at Rome, Troilus and Dominicus. It seemed that Troilus exercised some strange and malefic influence over his companion, who was taken with fever. He got well of this, but only to fall into a dropsy, which despatched him in a week. Shortly before his death, at the seventh hour, he cried out to two Spaniards who were standing by the bed that he had suffered such great torture from the working of Troilus, and that he was dying therefrom. "Therefore," he cried, "in your presence I summon him with my dying words to appear before God's tribunal, that he may give an account of all the evil he has wrought against me." On the following day there came a messenger from Corneto, a few miles from Rome, saying that Troilus, who was sojourning there, had fallen sick. The physician inquired at what hour, and the messenger said it was at seven o'clock, a day or two ago. He lay ill some days, an unfavourable case, but not a desperate one, and one night shortly afterwards at seven o'clock, the top of the mosquito curtains fell, and he died at exactly the same hour as Dominicus.
He tells another long story of an adventure which befell him in May 1576. One day he was driving in his carriage in the Forum, when he remembered that he wanted to see a certain jeweller who lived in a narrow alley close by. Wherefore he told his coachman, a stupid fellow, to go to the Campo Altoviti, and await him there. The coachman drove off apparently understanding the order; but, instead of going to the place designated, went somewhere else; so Cardan, when he set about to find his carriage, sought in vain. He had a notion that the man had gone to a spot near the citadel, so he walked thither, encumbered with the thick garments he had put on as necessary for riding in the carriage. Just then he met a friend of his, Vincenzio, a Bolognese musician, who remarked that Cardan was not in his carriage as usual. The old man went on towards the citadel, but saw nothing of the carriage; and now he began to be seriously troubled, for there was naught else to be done but to go back over the bridge, and he was wearied with long fasting and his heavy clothes. He might indeed have asked for the loan of a carriage from the Governor of the castle; but he was unwilling to do this, so having commended himself to God, he resolved to use all his patience and prudence in finding his way back. He set out, and when he had crossed the bridge, he entered the banking-house of the Altoviti to inquire as to the alteration in the rate of exchange on Naples, and there sat down to rest. While the banker was giving him this information, the Governor entered the place, whereupon Cardan went out and there he found his carriage, the driver having been informed by Vincenzio, whom he had met, of the mistake he had made. Cardan got into the carriage, and while he was wondering whether or not he had better go home and break his fast, he found three raisins in his pocket, and thus made a fortunate ending of all his difficulties.
All this reads like a commonplace chapter of accidents; but the events recorded did not present themselves to Cardan in this guise. He sits down to moralize over the succession of momentary events: his meeting with Vincenzio; Vincenzio's meeting with the driver, and directions given to the man to drive to the money-changers'; the presence of the Governor, his exit from the bank, his consequent meeting with the carriage, and his discovery of the raisins, seven occurrences in all, any one of which, if it had happened a little sooner or a little later, would have brought about great inconvenience, or even worse. He does not deny that other men may not now and then encounter like experiences, but the experiences of other men were not fraught with such momentous crises, nor did they foreshadow so many or grave dangers.
The chronicling of this episode and the fanciful coincidence of the deaths of Dominicus and Troilus may be taken as evidence that his idiosyncrasies were becoming aggravated by the decay of his faculties. Writing on October 1, 1576, he makes mention of the various testaments he had already made, and goes on to say that he had resolved to make a new and final disposition of his goods. He would fain have let his property descend to his immediate offspring, but with a son like Aldo this was impossible, so he left all to Gian Battista's son, who would now be a youth about eighteen years of age, Aldo getting nothing. He desired, for reasons best known to himself, that all his descendants should remain in curatela as long as possible, and that all his property should be held on trust; if the issue of his body should fail, then the succession should pass in perpetuity to his kinsfolk on the father's side. He desired that his works should be corrected and printed, and that, if heirs failed entirely, his house at Bologna should pass to the University, and be styled, after his family, Collegium Cardanorum.
There is no authentic record of the exact date of Cardan's death. De Thou, in writing the record of 1576, says that if Cardan's life had been prolonged by three days he would have completed his seventy-fifth year. As Cardan's birthday was September 24, 1501, this would fix his death on September 21, 1576. The exact figures given by De Thou are: "eodem, quo prædixerat, anno et die, videlicet XI. Kalend. VIII.," and he adds by way of information that a belief was current at the time that Cardan, who had foretold how he would die on this day and in this year, had abstained from food for some days previous to his death in order to make the fatal day square with the prophecy.
But the details which Cardan himself has set down concerning the last few weeks of his life are inconsistent with the facts chronicled by De Thou. In the De Vita Propria, chapter xxxvi., Cardan records how on October 1, 1576, he set to work to make his last will and testament, wherefore if credit is to be given to his version rather than to that of De Thou, he was alive and active some days after the date of his death as fixed by the chronicler. In cases where the record of an event of his early life given in the De Vita Propria differs from an account of the same in some contemporary writing, the testimony of the De Vita Propria may justly be put aside; but in this instance he was writing of something which could only have happened a few days past, and the balance of probability is that he was right and De Thou wrong. Bayle notices this discrepancy, and in the same paragraph taxes De Thou with a mistake of which he is innocent. He states that De Thou placed the date of Cardan's death in 1575, whereas the excerpt cited above runs: "Thuanus ad annum MDLXXVI., p. 136, lib. lxii. tom. 4. Romæ magni nominis sive Mathematicus, sive Medicus Hieronymus Cardanus Mediol. natus hoc anno itidem obiit."
No mention is made of the disease to which Cardan finally succumbed. Had his frame not been of the strongest and most wiry, it must have gone to pieces long before through the havoc wrought by the severe and continuous series of ailments with which it was afflicted; so it seems permissible to assume that he died of natural decay. His body was interred in the church of Sant Andrea at Rome, and was subsequently transferred to Milan to be deposited finally under the stone which covered the bones of his father in the church of San Marco. This tomb, which Jerome had erected after Fazio's death, bore the following inscription:
FACIO CARDANO
1.C.
Mors fuit id quod vixi: vitam mors dedit ipsa,
Mens æterna manet, gloria tuta quies.
Obiit anno MDXXIV. IV. Kalend. Sept. anno Ætatis LXXX.
Hieronymus Cardanus Medicus Parenti posterisque V.P.[247]