Among these discordant opinions mankind have discovered for themselves a kind of intermediate deity, by which our scepticism concerning God is still increased. For all over the world, in all places, and at all times, Fortune is the only god whom every one invokes; she alone is spoken of, she alone is accused and is supposed to be guilty; she alone is in our thoughts, is praised and blamed, and is loaded with reproaches; wavering as she is, conceived by the generality of mankind to be blind, wandering, inconstant, uncertain, variable, and often favouring the unworthy. To her are referred all our losses and all our gains, and in casting up the accounts of mortals she alone balances the two pages of our sheet. We are so much in the power of chance, that change itself is considered as a God, and the existence of God becomes doubtful.
But there are others who reject this principle and assign events to the influence of the stars, and to the laws of our nativity; they suppose that God, once for all, issues his decrees and never afterwards interferes. This opinion begins to gain ground, and both the learned and the unlearned vulgar are falling into it. Hence we have the admonitions of thunder, the warnings of oracles, the predictions of soothsayers, and things too trifling to be mentioned, as sneezing and stumbling with the feet reckoned among omens. The late Emperor Augustus relates, that he put the left shoe on the wrong foot, the day when he was near being assaulted by his soldiers. And such things as these so embarrass improvident mortals, that among all of them this alone is certain, that there is nothing certain, and that there is nothing more proud or more wretched than man. For other animals have no care but to provide for their subsistence, for which the spontaneous kindness of nature is all-sufficient; and this one circumstance renders their lot more especially preferable, that they never think about glory, or money, or ambition, and, above all, that they never reflect on death.
The belief, however, that on these points the Gods superintend human affairs is useful to us, as well as that the punishment of crimes, although sometimes tardy, from the Deity being occupied with such a mass of business, is never entirely remitted, and that the human race was not made the next in rank to himself, in order that they might be degraded like brutes. And indeed this constitutes the great comfort in this imperfect state of man, that even the Deity cannot do everything. For he cannot procure death for himself, even if he wished it, which, so numerous are the evils of life, has been granted to man as our chief good. Nor can he make mortals immortal, or recall to life those who are dead; nor can he effect, that he who has once lived shall not have lived, or that he who has enjoyed honours shall not have enjoyed them; nor has he any influence over past events but to cause them to be forgotten. And, if we illustrate the nature of our connexion with God by a less serious argument, he cannot make twice ten not to be twenty, and many other things of this kind. By these considerations the power of Nature is clearly proved, and is shown to be what we call God. It is not foreign to the subject to have digressed into these matters, familiar as they are to every one, from the continual discussions that take place respecting God.
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CHAP. 6. (8.)
OF THE NATURE OF THE STARS; OF THE MOTION OF THE PLANETS.
Let us return from this digression to the other parts of nature. The stars which are described as fixed in the heavens, are not, as the vulgar suppose, attached each of them to different individuals, the brighter to the rich, those that are less so to the poor, and the dim to the aged, shining according to the lot of the individual, and separately assigned to mortals; for they have neither come into existence, nor do they perish in connexion with particular persons, nor does a falling star indicate that any one is dead. We are not so closely connected with the heavens as that the shining of the stars is affected by our death. When they are supposed to shoot or fall, they throw out, by the force of their fire, as if from an excess of nutriment, the superabundance of the humour which they have absorbed, as we observe to take place from the oil in our lamps, when they are burning. The nature of the celestial bodies is eternal, being interwoven, as it were, with the world, and, by this union, rendering it solid; but they exert their most powerful influence on the earth. This, notwithstanding its subtilty, may be known by the clearness and the magnitude of the effect, as we shall point out in the proper place. The account of the circles of the heavens will be better understood when we come to speak of the earth, since they have all a reference to it; except what has been discovered respecting the Zodiac, which I shall now detail.
Anaximander the Milesian, in the 58th olympiad, is said to have been the first who understood its obliquity, and thus opened the road to a correct knowledge of the subject. Afterwards Cleostratus made the signs in it, first marking those of Aries and Sagittarius; Atlas had formed the sphere long before this time. But now, leaving the further consideration of this subject, we must treat of the bodies that are situated between the earth and the heavens.
It is certain that the star called Saturn is the highest, and therefore appears the smallest, that he passes through the largest circuit, and that he is at least thirty years in completing it. The course of all the planets, and among others of the Sun, and the Moon, is in the contrary direction to that of the heavens, that is towards the left, while the hea- vens are rapidly carried about to the right. And although, by the stars constantly revolving with immense velocity, they are raised up, and hurried on to the part where they set, yet they are all forced, by a motion of their own, in an opposite direction; and this is so ordered, lest the air, being always moved in the same direction, by the constant whirling of the heavens, should accumulate into one mass, whereas now it is divided and separated and beaten into small pieces, by the opposite motion of the different stars. Saturn is a star of a cold and rigid nature, while the orbit of Jupiter is much lower, and is carried round in twelve years. The next star, Mars, which some persons call Hercules, is of a fiery and burning nature, and from its nearness to the sun is carried round in little less than two years. In consequence of the excessive heat of this star and the rigidity of Saturn, Jupiter, which is interposed between the two, is tempered by both of them, and is thus rendered salutary. The path of the Sun consists of 360 degrees; but, in order that the shadow may return to the same point of the dial, we are obliged to add, in each year, five days and the fourth part of a day. On this account an intercalary day is given to every fifth year, that the period of the seasons may agree with that of the Sun.
Below the Sun revolves the great star called Venus, wandering with an alternate motion, and, even in its surnames, rivalling the Sun and the Moon. For when it precedes the day and rises in the morning, it receives the name of Lucifer, as if it were another sun, hastening on the day. On the contrary, when it shines in the west, it is named Vesper, as prolonging the light, and performing the office of the moon. Pythagoras, the Samian, was the first who discovered its nature, about the 62nd olympiad, in the 222nd year of the City. It excels all the other stars in size, and its brilliancy is so considerable, that it is the only star which produces a shadow by its rays. There has, consequently, been great interest made for its name; some have called it the star of Juno, others of Isis, and others of the Mother of the Gods. By its influence everything in the earth is generated. For, as it rises in either direction, it sprinkles everything with its genial dew, and not only matures the productions of the earth, but stimulates all living things. It completes the circuit of the zodiac in 348 days, never receding from the sun more than 46 degrees, according to Timæus.
Similarly circumstanced, but by no means equal in size and in power, next to it, is the star Mercury, by some called Apollo; it is carried in a lower orbit, and moves in a course which is quicker by nine days, shining sometimes before the rising of the sun, and at other times after its setting, but never going farther from it than 23 degrees, as we learn from Timæus and Sosigenes. The nature of these two stars is peculiar, and is not the same with those mentioned above, for those are seen to recede from the sun through one-third or one-fourth part
of the heavens, and are often seen opposite to it. They have also other larger circuits, in which they make their complete revolutions, as will be described in the account of the great year.
(9.) But the Moon, which is the last of the stars, and the one the most connected with the earth, the remedy provided by nature for darkness, excels all the others in its admirable qualities. By the variety of appearances which it assumes, it puzzles the observers, mortified that they should be the most ignorant concerning that star which is the nearest to them. She is always either waxing or waning; sometimes her disc is curved into horns, sometimes it is divided into two equal portions, and at other times it is swelled out into a full orb; sometimes she appears spotted and suddenly becomes very bright; she appears very large with her full orb and suddenly becomes invisible; now continuing during all the night, now rising late, and now aiding the light of the sun during a part of the day; becoming eclipsed and yet being visible while she is eclipsed; concealing herself at the end of the month and yet not supposed to be eclipsed. Sometimes she is low down, sometimes she is high up, and that not according to one uniform course, being at one time raised up to the heavens, at other times almost contiguous to the mountains; now elevated in the north, now depressed in the south; all which circumstances having been noticed by Endymion, a report was spread about, that he was in love with the moon. We are not indeed sufficiently grateful to those, who, with so much labour and care, have enlightened us with this light; while, so diseased is the human mind, that we take pleasure in writing the annals of blood and slaughter, in order that the crimes of men may be made known to those who are ignorant of the constitution of the world itself.
Being nearest to the axis, and therefore having the smallest orbit, the Moon passes in twenty-seven days and the one-third part of a day, through the same space for which Saturn, the highest of the planets, as was stated above, requires thirty years. After remaining for two days in conjunction with the sun, on the thirtieth day she again very slowly emerges to pursue her accustomed course. I know not whether she ought not to be considered as our instructress in everything that can be known respecting the heavens; as that the year is divided into the twelve divisions of the months, since she follows the sun for the same number of times, until he returns to the commencement of his course; and that her brightness, as well as that of the other stars, is regulated by that of the sun, if indeed they all of them shine by light borrowed from him, such as we see floating about, when it is reflected from the surface of water. On this account it is that she dissolves so much moisture, by a gentle and less perfect force, and adds to the quantity of that which the rays of the sun con- sume. On this account she appears with an unequal light, because being full only when she is in opposition, on all the remaining days she shows only so much of herself to the earth as she receives light from the sun. She is not seen in conjunction, because, at that time, she sends back the whole stream of light to the source whence she has derived it. That the stars generally are nourished by the terrestrial moisture is evident, because, when the moon is only half visible she is sometimes seen spotted, her power of absorbing moisture not having been powerful enough; for the spots are nothing else than the dregs of the earth drawn up along with the moisture. (10.) But her eclipses and those of the sun, the most wonderful of all the phænomena of nature, and which are like prodigies, serve to indicate the magnitude of these bodies and the shadow which they cast.
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CHAP. 7.
OF THE ECLIPSES OF THE MOON AND THE SUN.
For it is evident that the sun is hid by the intervention of the moon, and the moon by the opposition of the earth, and that these changes are mutual, the moon, by her interposition, taking the rays of the sun from the earth, and the earth from the moon. As she advances darkness is suddenly produced, and again the sun is obscured by her shade; for night is nothing more than the shade of the earth. The figure of this shade is like that of a pyramid or an inverted top; and the moon enters it only near its point, and it does not exceed the height of the moon, for there is no other star which is obscured in the same manner, while a figure of this kind always terminates in a point. The flight of birds, when very lofty, shows that shadows do not extend beyond a certain distance; their limit appears to be the termination of the air and the commencement of the æther. Above the moon everything is pure and full of an eternal light. The stars are visible to us in the night, in the same way that other luminous bodies are seen in the dark. It is from these causes that the moon is eclipsed during the night. The two kinds of eclipses are not, however, at the stated monthly periods, on account of the obliquity of the zodiac, and the irregularly wandering course of the moon, as stated above; besides that the motions of these stars do not always occur exactly at the same points.
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CHAP. 8. (11.)
OF THE MAGNITUDE OF THE STARS.
This kind of reasoning carries the human mind to the heavens, and by contemplating the world as it were from thence, it discloses to us the magnitude of the three greatest bodies in nature. For the sun could not be entirely concealed from the earth, by the intervention of the moon, if the earth were greater than the moon. And the vast size of the third body, the sun, is manifest from that of the other two, so that it is not necessary to scrutinize its size, by arguing from its visible appearance, or from any conjectures of the mind; it must be immense, because the shadows of rows of trees, extending for any number of miles, are disposed in right lines, as if the sun were in the middle of space. Also, because, at the equinox, he is vertical to all the inhabitants of the southern districts at the same time; also, because the shadows of all the people who live on this side of the tropic fall, at noon, towards the north, and, at sunrise, point to the west. But this could not be the case unless the sun were much greater than the earth; nor, unless it much exceeded Mount Ida in breadth, could he be seen when he rises, passing considerably beyond it to the right and to the left, especially, considering that it is separated by so great an interval.
The eclipse of the moon affords an undoubted argument of the sun’s magnitude, as it also does of the small size of the earth. For there are shadows of three figures, and it is evident, that if the body which produces the shadow be equal to the light, then it will be thrown off in the form of a pillar, and have no termination. If the body be greater than the light, the shadow will be in the form of an inverted cone, the bottom being the narrowest part, and being, at the same time, of an infinite length. If the body be less than the light, then we shall have the figure of a pyramid, terminating in a point. Now of this last kind is the shadow which produces the eclipse of the moon, and this is so manifest that there can be no doubt remaining, that the earth is exceeded in magnitude by the sun, a circumstance which is indeed indicated by the silent declaration of nature herself. For why does he recede from us at the winter half of the year? That by the darkness of the nights the earth may be refreshed, which otherwise would be burned up, as indeed it is in certain parts; so great is his size.
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CHAP. 9. (12.)
AN ACCOUNT OF THE OBSERVATIONS THAT HAVE BEEN MADE ON THE HEAVENS BY DIFFERENT INDIVIDUALS.
The first among the Romans, who explained to the people at large the cause of the two kinds of eclipses, was Sulpicius Gallus, who was consul along with Marcellus; and when he was only a military tribune he relieved the army from great anxiety the day before king Perseus was conquered by Paulus; for he was brought by the general into a public assembly, in order to predict the eclipse, of which he afterwards gave an account in a separate treatise. Among the Greeks, Thales the Milesian first investigated the subject, in the fourth year of the forty-eighth olympiad, predicting the eclipse of the sun which took place in the reign of Alyattes, in the 170th year of the City. After them Hipparchus calculated the course of both these stars for the term of 600 years, including the months, days, and hours, the situation of the different places and the aspects adap
ted to each of them; all this has been confirmed by experience, and could only be acquired by partaking, as it were, in the councils of nature. These were indeed great men, superior to ordinary mortals, who having discovered the laws of these divine bodies, relieved the miserable mind of man from the fear which he had of eclipses, as foretelling some dreadful events or the destruction of the stars. This alarm is freely acknowledged in the sublime strains of Stesichorus and Pindar, as being produced by an eclipse of the sun. And with respect to the eclipse of the moon, mortals impute it to witchcraft, and therefore endeavour to aid her by producing discordant sounds. In consequence of this kind of terror it was that Nicias, the general of the Athenians, being ignorant of the cause, was afraid to lead out the fleet, and brought great distress on his troops. Hail to your genius, ye interpreters of heaven! ye who comprehend the nature of things, and who have discovered a mode of reasoning by which ye have conquered both gods and men! For who is there, in observing these things and seeing the labours which the stars are compelled to undergo (since we have chosen to apply this term to them), that would not cheerfully submit to his fate, as one born to die? I shall now, in a brief and summary manner, touch on those points in which we are agreed, giving the reasons where it is necessary to do so; for this is not a work of profound argument, nor is it less wonderful to be able to suggest a probable cause for everything, than to give a complete account of a few of them only.
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