Voltaire's Philosophical Dictionary. Voltaire
if fire has changed our globe, water has produced still finer revolutions. For you see clearly that the sea, the tides of which mount as high as eight feet in our climate, has produced mountains of a height of sixteen to seventeen thousand feet. This is so true that some learned men who have never been in Switzerland have found a big ship with all its rigging petrified on Mount St. Gothard, or at the bottom of a precipice, one knows not where; but it is quite certain that it was there. Therefore men were originally fish, quod erat demonstrandum.
To descend to a less antique antiquity, let us speak of the times when the greater part of the barbarous nations left their countries, to go to seek others which were hardly any better. It is true, if there be anything true in ancient history, that there were some Gaulish brigands who went to pillage Rome in the time of Camillus. Other Gaulish brigands had passed, it is said, through Illyria on the way to hire their services as murderers to other murderers, in the direction of Thrace; they exchanged their blood for bread, and later established themselves in Galatia. But who were these Gauls? were they Berichons and Angevins? They were without a doubt Gauls whom the Romans called Cisalpines, and whom we call Transalpines, famished mountain-dwellers, neighbours of the Alps and the Apennines. The Gauls of the Seine and the Marne did not know at that time that Rome existed, and could not take it into their heads to pass Mount Cenis, as Hannibal did later, to go to steal the wardrobes of Roman senators who at that time for all furniture had a robe of poor grey stuff, ornamented with a band the colour of ox blood; two little pummels of ivory, or rather dog's bone, on the arms of a wooden chair; and in their kitchens a piece of rancid bacon.
The Gauls, who were dying of hunger, not finding anything to eat in Rome, went off therefore to seek their fortune farther away, as was the practice of the Romans later, when they ravaged so many countries one after the other; as did the peoples of the North when they destroyed the Roman Empire.
And, further, what is it which instructs very feebly about these emigrations? It is a few lines that the Romans wrote at hazard; because for the Celts, the Velches or the Gauls, these men who it is desired to make pass for eloquent, at that time did not know, they and their bards, how either to read or write.
But to infer from that that the Gauls or Celts, conquered after by a few of Cæsar's legions, and by a horde of Bourguignons, and lastly by a horde of Sicamores, under one Clodovic, had previously subjugated the whole world, and given their names and laws to Asia, seems to me to be very strange: the thing is not mathematically impossible, and if it be demonstrated, I give way; it would be very uncivil to refuse to the Velches what one accords to the Tartars.
ARTS
That the Newness of the Arts in no wise proves the Newness of the Globe
All the philosophers thought matter eternal but the arts appear new. There is not one, even to the art of making bread, which is not recent. The first Romans ate pap; and these conquerors of so many nations never thought of either windmills or watermills. This truth seems at first to contradict the antiquity of the globe such as it is, or supposes terrible revolutions in this globe. The inundations of barbarians can hardly annihilate arts which have become necessary. I suppose that an army of negroes come among us like locusts, from the mountains of Cobonas, through the Monomotapa, the Monoemugi, the Nosseguais, the Maracates; that they have traversed Abyssinia, Nubia, Egypt, Syria, Asia Minor, the whole of our Europe; that they have overthrown everything, ransacked everything; there will still remain a few bakers, a few cobblers, a few tailors, a few carpenters: the necessary arts will survive; only luxury will be annihilated. It is what was seen at the fall of the Roman Empire; the art of writing even became very rare; almost all those which contributed to the comfort of life were reborn only long after. We invent new ones every day.
From all this one can at bottom conclude nothing against the antiquity of the globe. For, supposing even that an influx of barbarians had made us lose entirely all the arts even to the arts of writing and making bread; supposing, further, that for ten years past we had no bread, pens, ink and paper; the land which has been able to subsist for ten years without eating bread and without writing its thoughts, would be able to pass a century, and a hundred thousand centuries without these aids.
It is quite clear that man and the other animals can exist very well without bakers, without novelists, and without theologians, witness the whole of America, witness three quarters of our continent.
The newness of the arts among us does not therefore prove the newness of the globe, as was claimed by Epicurus, one of our predecessors in reverie, who supposed that by chance the eternal atoms in declining, had one day formed our earth. Pomponace said: "Se il mondo non è eterno, per tutti santi è molto vecchio."
ASTROLOGY
Astrology may rest on better foundations than Magic. For if no one has seen either Goblins, or Lemures, or Dives, or Peris, or Demons, or Cacodemons, the predictions of astrologers have often been seen to succeed. If of two astrologers consulted on the life of a child and on the weather, one says that the child will live to manhood, the other not; if one announces rain, and the other fine weather, it is clear that one of them will be a prophet.
The great misfortune of the astrologers is that the sky has changed since the rules of the art were established. The sun, which at the equinox was in Aries in the time of the Argonauts, is to-day in Taurus; and the astrologers, to the great ill-fortune of their art, to-day attribute to one house of the sun what belongs visibly to another. However, that is not a demonstrative reason against astrology. The masters of the art deceive themselves; but it is not demonstrated that the art cannot exist.
There is no absurdity in saying: Such and such a child is born in the waxing of the moon, during stormy weather, at the rising of such and such star; his constitution has been feeble, and his life unhappy and short; which is the ordinary lot of poor constitutions: this child, on the contrary, was born when the moon was full, the sun strong, the weather calm, at the rising of such and such star; his constitution has been good, his life long and happy. If these observations had been repeated, if they had been found accurate, experience would have been able after some thousands of years to form an art which it would have been difficult to doubt: one would have thought, with some likelihood, that men are like trees and vegetables which must be planted and sown only in certain seasons. It would have been of no avail against the astrologers to say: My son was born at a fortunate time, and nevertheless died in his cradle; the astrologer would have answered: It often happens that trees planted in the proper season perish; I answered to you for the stars, but I did not answer for the flaw of conformation you communicated to your child. Astrology operates only when no cause opposes itself to the good the stars can do.
One would not have succeeded better in discrediting the astrologer by saying: Of two children who were born in the same minute, one has been king, the other has been only churchwarden of his parish; for the astrologer could very well have defended himself by pointing out that the peasant made his fortune when he became churchwarden, as the prince when he became king.
And if one alleged that a bandit whom Sixtus V. had hanged was born at the same time as Sixtus V., who from a pig-herd became Pope, the astrologers would say one had made a mistake of a few seconds, and that it is impossible, according to the rules, for the same star to give the triple crown and the gibbet. It is then only because a host of experiences belied the predictions, that men perceived at last that the art was illusory; but before being undeceived, they were long credulous.
One of the most famous mathematicians in Europe, named Stoffler, who flourished in the fifteenth and sixteenth centuries, and who long worked at the reform of the calendar, proposed