Chapter XXII.--Motions of the Stars.
"But lest the assertion may seem doubtful respecting things which are not manifest to all, let us come to those things of which nobody is ignorant. Who disposed the courses of the stars with so great reason, ordained their risings and settings, and appointed to each one to accomplish the circuit of the heavens in certain and regular times? Who assigned to some to be always approaching to the setting, and others to be returning to the rising? Who put a measure upon the courses of the sun, that he might mark out, by his diverse motions, hours, and days, and months, and changes of seasons?--that he might distinguish, by the sure measurement of his course, now winter, then spring, summer, and afterwards autumn, and always, by the same changes of the year, complete the circle with variety, without confusion? Who, I say, will not pronounce that the director of such order is the very wisdom of God? And these things we have spoken according to the relations given us by the Greeks respecting the science of the heavenly bodies.
Chapter XXIII.--Providence in Earthly Things.
"But what of those things also which we see on the earth, or in the sea? Are we not plainly taught, that not only the work, but also the providence, of God is in them? For whereas there are on the earth lofty mountains in certain places, the object of this is, that the air, being compressed and confined by them through the appointment of God, may be forced and pressed out into winds, by which fruits may germinate, and the summer heat may be moderated when the Pleiades glow, fired with the blaze of the sun. But you still say, Why that blaze of the sun, that moderating should be required? How, then, should fruits be ripened which are necessary for the uses of men? But observe this also, that at the meridian axis, [815] where the heat is greatest, there is no great collection of clouds, nor an abundant fall of rain, lest disease should be produced among the inhabitants; for watery clouds, if they are acted on by rapid heat, render the air impure and pestilential. And the earth also, receiving the warm rain, does not afford nourishment to the crops, but destruction. In this who can doubt that there is the working of divine providence? In short, Egypt, which is scorched with the heat of Æthiopia, in its neighbourhood, lest its air should be incurably vitiated by the effects of showers, its plains do not receive rain furnished to them from the clouds, but, as it were, an earthly shower from the overflow of the Nile.
[815] That is, the equator.
Chapter XXIV.--Rivers and Seas.
"What shall we say of fountains and rivers, which flow with perpetual motion into the sea? And, by the divine providence, neither does their abundant supply fail, nor does the sea, though it receives so great quantities of water, experience any increase, but both those elements which contribute to it and those which are thus contributed remain in the same proportion. But you will say to me: The salt water naturally consumes the fresh water which is poured into it. Well, in this is manifest the work of providence, that it made that element salt into which it turned the courses of all the waters which it had provided for the use of men. So that through so great spaces of time the channel of the sea has not been filled, and produced a deluge destructive to the earth and to men. Nor will any one be so foolish as to think that this so great reason and so great providence has been arranged by irrational nature.
Chapter XXV.--Plants and Animals.
"But what shall I say of plants, and what of animals? Is it not providence that has ordained that plants, when they decay by old age, should be reproduced by the suckers or the seeds which they have themselves produced, and animals by propagation? And by a certain wonderful dispensation of providence, milk is prepared in the udders of the dams for the animals before they are born; and as soon as they are born, with no one to guide them, they seek out the store of nourishment provided for them. And not only males are produced, but females also, that by means of both the race may be perpetuated. But lest this should seem, as some think, to be done by a certain order of nature, and not by the appointment of the Creator, He has, as a proof and indication of His providence, ordained a few animals to preserve their stock on the earth in an exceptional way: for example, the crow conceives through the mouth, and the weasel brings forth through the ear; and some birds, such as hens, sometimes produce eggs conceived of wind or dust; other animals convert the male into the female, and change their sex every year, as hares and hyænas, which they call monsters; others spring from the earth, and get their bodies from it, as moles; others from ashes, as vipers; others from putrifying flesh, as wasps from horseflesh, bees from ox-flesh; others from cow-dung, as beetles; others from herbs, as the scorpion from the basil; and again, herbs from animals, as parsley and asparagus from the horn of the stag or the she goat.