The trial and condemnation of galileo


















Galileo's world of science and humanism collides with the world of Scholasticism and absolutism that held power in the Catholic Church. The result is a tragedy that marks both the end of Galileo's liberty and the end of the Italian Renaissance. Galileo Galilei was born in the same year that Shakespeare was born and Michelangelo died.

From an early age, Galileo showed his scientific skills. At age nineteen, he discovered the isochronism of the pendulum. You confessed that you began to write the said book about ten or twelve years ago, after the command had been imposed upon you as above; that you requested license to print it without, however, intimating to those who granted you this license that you had been commanded not to hold, defend, or teach the doctrine in question in any way whatever.

You likewise confessed that the writing of the said book is in many places drawn up in such a form that the reader might fancy that the arguments brought forward on the false side are calculated by their cogency to compel conviction rather than to be easy of refutation, excusing yourself for having fallen into an error, as you alleged, so foreign to your intention, by the fact that you had written in dialogue and by the natural complacency that every man feels in regard to his own subtleties and in showing himself more clever than the generality of men in devising, even on behalf of false propositions, ingenious and plausible arguments.

And a suitable term having been assigned to you to prepare your defense, you produced a certificate in the handwriting of his Eminence the Lord Cardinal Bellarmine, procured by you, as you asserted, in order to defend yourself against the calumnies of your enemies, who charged that you had abjured and had been punished by the Holy Office, in which certificate it is declared that you had not abjured and had not been punished but only that the declaration made by His Holiness and published by the Holy Congregation of the Index has been announced to you, wherein it is declared that the doctrine of the motion of the Earth and the stability of the Sun is contrary to the Holy Scriptures and therefore cannot be defended or held.

And all this you urged not by way of excuse for your error but that it might be set down to a vainglorious ambitions rather than to malice. But his certificate produced by you in your defense has only aggravated your delinquency, since, although it is there stated that said opinion is contrary to Holy Scripture, you have nevertheless dared to discuss and defend it and to argue its probability; nor does the license artfully and cunningly extorted by you avail you anything, since you did not notify the command imposed upon you.

And whereas it appeared to us that you had not stated the full truth with regard to your intention, we thought it necessary to subject you to a rigorous examination at which without prejudice, however, to the matters confessed by you and set forth as above with regard to your said intention you answered like a good Catholic.

Therefore, having seen and maturely considered the merits of this your cause, together with your confessions and excuses above-mentioned, and all that ought justly to be seen and considered, we have arrived at the underwritten final sentence against you:. Invoking, therefore, the most holy name of our Lord Jesus Christ and of His most glorious Mother, ever Virgin Mary, but this our final sentence, which sitting in judgment, with the counsel and advice of the Reverend Masters of sacred theology and Doctors of both Laws, our assessors, we deliver in these writings, in the cause and causes at present before us between the Magnificent Carlo Sinceri, Doctor of both Laws, Proctor Fiscal of this Holy Office, of the one part, and your Galileo Galilei, the defendant, here present, examined, tried, and confessed as shown above, of the other part—.

We say, pronounce, sentence, and declare that you, the said Galileo, by reason of the matters adduced in trial, and by you confessed as above, have rendered yourself in the judgment of this Holy Office vehemently suspected of heresy, namely, of having believed and held the doctrine—which is false and contrary to the sacred and divine Scriptures—that the Sun is the center of the world and does not move from east to west and that the Earth moves and is not the center of the world; and that an opinion may be held and defended as probably after it has been declared and defined to be contrary to the Holy Scripture; and that consequently you have incurred all the censures and penalties imposed and promulgated in the sacred canons and other constitutions, general and particular, against such delinquents.

However, the situation changed with the astronomical discoveries Galileo made in by means of the newly invented telescope: mountains on the Moon, satellites around Jupiter, phases exhibited by Venus, and sunspots.

These discoveries did not conclusively prove Copernicanism, but provided new evidence in its favor and refutations of some old objections. Galileo became more explicit in his pursuit of heliocentrism, and this soon got him into trouble. In February-March , one Dominican friar filed a written complaint against him, and another one testified in person in front of the Roman Inquisition.

The Inquisition launched an investigation. The charges against Galileo were unsubstantiated. However, the officials started worrying about the status of heliocentrism and consulted a committee of experts. On February 24, , the consultants unanimously reported the assessment that heliocentrism was philosophically i.

The following day, the Inquisition, presided by Pope Paul V, considered the case. Although it did not endorse the heresy recommendation, it accepted the judgments of scientific falsity and theological error, and decided to prohibit the theory.

Galileo agreed to comply.



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