de Dava Sobel




Dava Sobel é americana e vive em New York. Publicou “A Filha de Galileu” em Outubro de 1999. O livro baseia-se nas cartas da Irmã Maria Celeste (1600 – 1634), o nome como religiosa, da filha mais velha de Galileu Galilei (1564 – 1642), Virgínia Galilei. Sobel traduziu as 124 cartas escritas entre 1623 e 1634, embora tenha apenas utilizado uma parte delas no seu livro. Na realidade, a autora acaba por escrever também a biografia de Galileu, a quem a sua filha se dedicou inteiramente.

O estilo do livro é extremamente vivo e cativante, apresentando-se como se de uma memória da autora se tratasse.

Antes de publicar o livro, a autora confiou o manuscrito a estudantes do Prof. Albert Van Helden, director do projecto Galileo in Context na Rice University, em Houston. 


  Ao mesmo tempo, entregou-lhes a sua tradução das cartas da Irmã Maria Celeste, que eles colocaram na Web. As cartas são um elemento precioso para o estudo da vida em geral e nos conventos, em especial, no sec. XVII. Com base nas cartas, os estudantes escreveram ensaios sobre a vida no convento de Arcetri (Florença), o estatuto das mulheres, a peste bubónica, o horóscopo (ver aqui).

Ainda sobre a Irmã Maria Celeste, pode ler-se mais este directório de links.

Sobre Galileo Galilei, destaco a biografia de Saro Alioto e ainda outra, em italiano.

O livro está publicado em Portugal, em breve, pela Temas e Debates (ao lado). O outro livro da autora, Longitude (A verdadeira história da um génio solitário que resolveu o maior problema científico do seu tempo), foi editado pela Temas e Debates.

A Filha de Galileu, de Dava Sobel
Tradução de Maria Eduarda Correia
Temas e Debates, Lisboa, 2002, 408 pp,







Galileo Galilei, famously the father of modern physics, also fathered three children during a 12-year love affair with the mysterious Marina Gamba. When he ended their liaison in 1610 by leaving Venice to become chief mathematician and philosopher at the Medici court in Florence, he took with him his two daughters, Virginia and Livia, ages 10 and nine, whom he had christened after his sisters, while four-year-old Vincenzio, named for Galileo's father, stayed temporarily under Marina's care.

Realistically appraising his daughters' future prospects, Galileo placed them at the Convent of San Matteo in Arcetri, a mile from Florence, shortly after Virginia's thirteenth birthday. As each girl reached the canonical age of 16, she professed her vows of poverty, chastity, and obedience in the Franciscan order of the Poor Clares. Virginia took the name Maria Celeste, in a gesture that acknowledged her father's fascination with the stars. She remained devoted to Galileo for the rest of her life, and he grew emotionally dependent upon this "woman of exquisite mind," as he called her, "singular goodness, and most tenderly attached to me."

From their intimate correspondence, 124 of her letters survive.

I set aside and save all the letters that you write me daily, Sire, and whenever I find myself free, then with the greatest pleasure I reread them yet again, so that I abandon myself to thoughts of you....

Suor Maria Celeste's letters chronicle momentous events of Galileo's career, including the writing of his Dialogue on the Two Chief Systems of the World and his trial and conviction by the Holy office of the Roman Inquisition. Her letters speak from inside a convent where residents often took the veil as a "forced vocation" instead of a true calling; she witnessed one nun's repeated suicide attempts, and suffered abuses from unscrupulous priests.

Musically talented, Suor Maria Celeste directed the nuns' choir and taught novices Gregorian chant. As convent apothecary, she fabricated pills and tonics from rose water, aloe, and rue--not only for the sick sisters, but also to treat Galileo's frequent ills.

Truly I never take notice of living cloistered as a nun, except when I hear that you are sick, Sire, because then I would like to be free to come to visit and care for you with all the diligence I could muster.

She coddled her younger sister, Suor Arcangela, whose melancholy, eccentric personality engendered a host of hysterical complaints. Her own health was indifferent at best, and toothaches forced her to extract her own rotted molars.

I have been confined to bed since Sunday with a fever.... Now that blessed God has seen fit to keep me alive, Sire, I am ...appealing to you in my neediness, confident that day after day you will minister to me with your gracious loving tenderness....I will say only that the provisions currently given to us in the convent consist of moldy bread, ox meat, and wine that has turned sour....

She ministered to her father and brother by laundering their collars, mending Galileo's worn leather work apron, copying his important letters in her fine hand. A chance remark suggests she also wrote out the (missing) final manuscript for Galileo's Dialogue, which was banned soon after its 1632 publication--and then spent two centuries on the Index Librorum Prohibitorum.

All through the year of her father's trial in Rome and detention at Siena, Suor Maria Celeste oversaw his domestic affairs from within her convent walls. As keeper of Galileo's keys, she aided friends who removed incriminating evidence from his villa.

Every hour seems a thousand years to me while I await that promised day when I shall see you again....At no time do I ever leave off commending you with all my soul to blessed God, because you fill my heart, Sire, and nothing matters more to me than your spiritual and physical well-being. And to give you some tangible proof of this concern, I tell you that I succeeded in obtaining permission to view your sentence, the reading of which, though on the one hand it grieved me wretchedly, on the other it thrilled me to have seen it and found in it a means of being able to do you good, Sire, in some very small way; that is by taking upon myself your obligation to recite once each week the seven psalms, and I have already begun to fulfill this requirement and to do so with great relish, first because I believe that prayer accompanied by the claim of obedience to Holy Church is effective, and then, too, to relieve you of this care. Therefore if I were able to substitute myself in the rest of your punishment, most willingly would I elect a prison even straiter than this one in which I dwell, if by so doing I could set you at liberty.

Soon after Galileo returned, the strain of his daughter's anxious vigil took its toll. Her death on April 2, 1634, officially laid to dysentery, more likely reflected the cumulative effects of exposure, malnutrition, and a broken heart.

 Dava Sobel, 1999




Excerpt of Galileo's Daughter by Dava Sobel


She who was
 So precious
to you

Most Illustrious Lord Father

We are terribly saddened by the death of your cherished sister, our dear aunt; but our sorrow at losing her is as nothing compared to our concern for your sake, because your suffering will be all the greater, Sire, as truly you have no one else left in your world, now that she, who could not have been more precious to you, has departed, and therefore we can only imagine how you sustain the severity of such a sudden and completely unexpected blow. And while I tell you that we share deeply in your grief, you would do well to draw even greater comfort from contemplating the general state of human misery, since we are all of us here on Earth like strangers and wayfarers, who soon will be bound for our true homeland in Heaven, where there is perfect happiness, and where we must hope that your sister's blessed soul has already gone. Thus, for the love of God, we pray you, Sire, to be consoled and to put yourself in His hands, for, as you know so well, that is what He wants of you; to do otherwise would be to injure yourself and hurt us, too, because we lament grievously when we hear that you are burdened and troubled, as we have no other source of goodness in this world but you. 

I will say no more, except that with all our hearts we fervently pray the Lord to comfort you and be with you always, and we greet you dearly with our ardent love. 

Most affectionate daughter, 
S. Maria Celeste 


The day after his sister Virginia's funeral, the already world-renowned scientist Galileo Galilei received this, the first of 124 surviving letters from the once-voluminous correspondence he carried on with his elder daughter. She alone of Galileo's three children mirrored his own brilliance, industry, and sensibility, and by virtue of these qualities became his confidante. 

Galileo's daughter, born of his long illicit liaison with the beautiful Marina Gamba of Venice, entered the world in the summer heat of a new century, on August 13, 1600--the same year the Dominican friar Giordano Bruno was burned at the stake in Rome for insisting, among his many heresies and blasphemies, that the Earth traveled around the Sun, instead of remaining motionless at the center of the universe. In a world that did not yet know its place, Galileo would engage this same cosmic conflict with the Church, treading a dangerous path between the Heaven he revered as a good Catholic and the heavens he revealed through his telescope. 

Galileo christened his daughter Virginia, in honor of his "cherished sister." But because he never married Virginia's mother, he deemed the girl herself unmarriageable. Soon after her thirteenth birthday, he placed her at the Convent of San Matteo in Arcetri, where she lived out her life in poverty and seclusion. 

Virginia adopted the name Maria Celeste when she became a nun, in a gesture that acknowledged her father's fascination with the stars. Even after she professed a life of prayer and penance, she remained devoted to Galileo as though to a patron saint. The doting concern evident in her condolence letter was only to intensify over the ensuing decade as her father grew old, fell more frequently ill, pursued his singular research nevertheless, and published a book that brought him to trial by the Holy Office of the Inquisition. 

The "we" of Suor Maria Celeste's letter speaks for herself and her sister, Livia--Galileo's strange, silent second daughter, who also took the veil and vows at San Matteo to become Suor Arcangela. Meanwhile their brother, Vincenzio, the youngest child of Galileo and Marina's union, had been legitimized in a fiat by the grand duke of Tuscany and gone off to study law at the University of Pisa. 

Thus Suor Maria Celeste consoled Galileo for being left alone in his world, with daughters cloistered in the separate world of nuns, his son not yet a man, his former mistress dead, his family of origin all deceased or dispersed. 

Galileo, now fifty-nine, also stood boldly alone in his world-view, as Suor Maria Celeste knew from reading the books he wrote and the letters he shared with her from colleagues and critics all over Italy, as well as from across the continent beyond the Alps. Although her father had started his career as a professor of mathematics, teaching first at Pisa and then at Padua, every philosopher in Europe tied Galileo's name to the most startling series of astronomical discoveries ever claimed by a single individual. 

In 1609, when Suor Maria Celeste was still a child in Padua, Galileo had set a telescope in the garden behind his house and turned it skyward. Never-before-seen stars leaped out of the darkness to enhance familiar constellations; the nebulous Milky Way resolved into a swath of densely packed stars; mountains and valleys pockmarked the storied perfection of the Moon; and a retinue of four attendant bodies traveled regularly around Jupiter like a planetary system in miniature. 

"I render infinite thanks to God," Galileo intoned after those nights of wonder, "for being so kind as to make me alone the first observer of marvels kept hidden in obscurity for all previous centuries." 

The newfound worlds transformed Galileo's life. He won appointment as chief mathematician and philosopher to the grand duke in 1610, and moved to Florence to assume his position at the court of Cosimo de' Medici. He took along with him his two daughters, then ten and nine years old, but he left Vincenzio, who was only four when greatness descended on the family, to live a while longer in Padua with Marina. 

Galileo found himself lionized as another Columbus for his conquests. Even as he attained the height of his glory, however, he attracted enmity and suspicion. For instead of opening a distant land dominated by heathens, Galileo trespassed on holy ground. Hardly had his first spate of findings stunned the populace of Europe before a new wave followed: He saw dark spots creeping continuously across the face of the Sun, and "the mother of loves," as he called the planet Venus, cycling through phases from full to crescent, just as the Moon did. 

All his observations lent credence to the unpopular Sun-centered universe of Nicolaus Copernicus, which had been introduced over half a century previously, but foundered on lack of evidence. Galileo's efforts provided the beginning of a proof. And his flamboyant style of promulgating his ideas--sometimes in bawdy humorous writings, sometimes loudly at dinner parties and staged debates--transported the new astronomy from the Latin Quarters of the universities into the public arena. In 1616, a pope and a cardinal inquisitor reprimanded Galileo, warning him to curtail his forays into the supernal realms. The motions of the heavenly bodies, they said, having been touched upon in the Psalms, the Book of Joshua, and elsewhere in the Bible, were matters best left to the Holy Fathers of the Church. 

Galileo obeyed their orders, silencing himself on the subject. For seven cautious years he turned his efforts to less perilous pursuits, such as harnessing his Jovian satellites in the service of navigation, to help sailors discover their longitude at sea. He studied poetry and wrote literary criticism. Modifying his telescope, he developed a compound microscope. "I have observed many tiny animals with great admiration," he reported, 11 among which the flea is quite horrible, the gnat and the moth very beautiful; and with great satisfaction I have seen how flies and other little animals can walk attached to mirrors, upside down." 

Shortly after his sister's death in May of 1623, however, Galileo found reason to return to the Sun-centered universe like a moth to a flame. That summer a new pope ascended the throne of Saint Peter in Rome. The Supreme Pontiff Urban VIII brought to the Holy See an intellectualism and an interest in scientific investigation not shared by his immediate predecessors. Galileo knew the man personally--he had demonstrated his telescope to him and the two had taken the same side one night in a debate about floating bodies after a banquet at the Florentine court. Urban, for his part, had admired Galileo so long and well that he had even written a poem for him, mentioning the sights revealed by "Galileo's glass." 

The presence of the poet pope encouraged Galileo to proceed with a long-planned popular dissertation on the two rival theories of cosmology: the Sun-centered and the Earth-centered, or, in his words, the "two chief systems of the world." 

It might have been difficult for Suor Maria Celeste to condone this course--to reconcile her role as a bride of Christ with her father's position as potentially the greatest enemy of the Catholic Church since Martin Luther. But instead she approved of his endeavors because she knew the depth of his faith. She accepted Galileo's conviction that God had dictated the Holy Scriptures to guide men's spirits but proffered the unraveling of the universe as a challenge to their intelligence. Understanding her father's prodigious capacity in this pursuit, she prayed for his health, for his longevity, for the fulfillment of his "every just desire." As the convent's apothecary, she concocted elixirs and pills to strengthen him for his studies and protect him from epidemic diseases. Her letters, animated by her belief in Galileo's innocence of any heretical depravity, carried him through the ordeal of his ultimate confrontation with Urban and the Inquisition in 1633. 

No detectable strife ever disturbed the affectionate relationship between Galileo and his daughter. Theirs is not a tale of abuse or rejection or intentional stifling of abilities. Rather, it is a love story, a tragedy, and a mystery. 

Most of Suor Maria Celeste's letters traveled in the pocket of a messenger, or in a basket laden with laundry, sweetmeats, or herbal medicines, across the short distance from the Convent of San Matteo, on a hillside just south of Florence, to Galileo in the city or at his suburban home. Following the angry papal summons to Rome in 1632, however, the letters rode on horseback some two hundred miles and were frequently delayed by quarantines imposed as the Black Plague spread death and dread across Italy. 

Gaps of months' duration disrupt the continuity of the reportage in places, but every page is redolent of daily life, down to the pain of toothache and the smell of vinegar. 

Galileo held on to his daughter's missives indiscriminately, collecting her requests for fruits or sewing supplies alongside her outbursts on ecclesiastical politics. Similarly, Suor Maria Celeste saved all of Galileo's letters, as rereading them, she often reminded him, gave her great pleasure. By the time she received the last rites, the letters she had gathered over her lifetime in the convent constituted the bulk of her earthly possessions. But then the mother abbess, who would have discovered Galileo's letters while emptying Suor Maria Celeste's cell, apparently buried or burned them out of fear. After the celebrated trial at Rome, a convent dared not harbor the writings of a "vehemently suspected" heretic. In this fashion, the correspondence between father and daughter was long ago reduced to a monologue. 

Standing in now for all the thoughts he once expressed to her are only those he chanced to offer others about her. "A woman of exquisite mind," Galileo described her to a colleague in another country, "singular goodness, and most tenderly attached to me." 

On first learning of Suor Maria Celeste's letters, people generally assume that Galileo's replies must lie concealed somewhere in the recesses of the Vatican Library, and that if only an enterprising outsider could gain access, the missing half of the dialogue would be found. But, alas, the archives have been combed, several times, by religious authorities and authorized researchers all desperate to hear the paternal tone of Galileo's voice. These seekers have come to accept the account of the mother abbess's destruction of the documents as the most reasonable explanation for their disappearance. The historical importance of any paper signed by Galileo, not to mention the prices such articles have commanded for the past two centuries, leaves few conceivable places where whole packets of his letters could hide. 

Although numerous commentaries, plays, poems, early lectures, and manuscripts of Galileo's have also disappeared (known only by specific mentions in more than two thousand preserved letters from his contemporary correspondents), his enormous legacy includes his five most important books, two of his original handmade telescopes, various portraits and busts he sat for during his lifetime, even parts of his body preserved after death. (The middle finger of his right hand can be seen, encased in a gilded glass egg atop an inscribed marble pedestal at the Museum of the History of Science in Florence.) 

Of Suor Maria Celeste, however, only her letters remain. Bound into a single volume with cardboard and leather covers, the frayed, deckle-edged pages now reside among the rare manuscripts at Florence's National Central Library. The handwriting throughout is still legible, though the once-black ink has turned brown. Some letters bear annotations in Galileo's own hand, for he occasionally jotted notes in the margins about the things she said and at other times made seemingly unrelated calculations or geometric diagrams in the blank spaces around his address on the verso. Several of the sheets are marred by tiny holes, torn, darkened by acid or mildew, smeared with spilled oil. Of those that are water-blurred, some obviously ventured through the rain, while others look more likely tear-stained, either during the writing or the reading of them. After nearly four hundred years, the red sealing wax still sticks to the folded corners of the paper. 

These letters, which have never been published in translation, recast Galileo's story. They recolor the personality and conflict of a mythic figure, whose seventeenth-century clash with Catholic doctrine continues to define the schism between science and religion. For although science has soared beyond his quaint instruments, it is still caught in his struggle, still burdened by an impression of Galileo as a renegade who scoffed at the Bible and drew fire from a Church blind to reason. 

This pervasive, divisive power of the name Galileo is what Pope John Paul II tried to tame in 1992 by reinvoking his torment so long after the fact. "A tragic mutual incomprehension," His Holiness observed of the 350-year Galileo affair, "has been interpreted as the reflection of a fundamental opposition between science and faith." 

Yet the Galileo of Suor Maria Celeste's letters recognized no such division during his lifetime. He remained a good Catholic who believed in the power of prayer and endeavored always to conform his duty as a scientist with the destiny of his soul. "Whatever the course of our lives," Galileo wrote, "we should receive them as the highest gift from the hand of God, in which equally reposed the power to do nothing whatever for us. Indeed, we should accept misfortune not only in thanks, but in infinite gratitude to Providence, which by such means detaches us from an excessive love for Earthly things and elevates our minds to the celestial and divine."

Copyright © 1999 Dava Sobel