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Translated by W. Moore and H. A. Wilson
St Gregory of Nyssa Resources Online and in Print
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This Part: 128 Pages
Page 79
For increase has no place in the infinite, and that which is by its nature passionless excludes all notion of decrease. And as, when looking up to heaven, and in a measure apprehending by the visual organs the beauty that is in the height, we doubt not the existence of what we see, but if asked what it is, we are unable to define its nature, but we simply admire as we contemplate the overarching vault, the reverse planetary motion [1078] , the so-called Zodiac graven obliquely on the pole, whereby astronomers observe the motion of bodies revolving in an opposite direction, the differences of luminaries according to their magnitude, and the specialities of their rays, their risings and settings that take place according to the circling year ever at the same seasons undeviatingly, the conjunctions of planets, the courses of those that pass below, the eclipses of those that are above, the obumbrations of the earth, the reappearance of eclipsed bodies, the moon's multiform changes, the motion of the sun midway within the poles, and how, filled with his own light, and crowned with his encircling beams, and embracing all things in his sovereign light, he himself also at times suffers eclipse (the disc of the moon, as they say, passing before him), and how, by the will of Him Who has so ordained, ever running his own particular course, he accomplishes his appointed orbit and progress, opening out the four seasons of the year in succession; we, as I say, when we contemplate these phenomena by the aid of sight, are in no doubt of their existence, though we are as far from comprehending their essential nature as if sight had not given us any glimpse whatever of what we have seen; and even so, with regard to the Creator of the world, we know that He exists, but of His essential nature we cannot deny that we are ignorant. But, boasting as they do that they know these things, let them first tell us about the things of inferior nature; what they think of the body of the heavens, of the machinery which conveys the stars in their eternal courses, or of the sphere in which they move; for, however far speculation may proceed, when it comes to the uncertain and incomprehensible it must stop. For though any one say that another body, like in fashion (to that body of the heavens), fitting to its circular shape, checks its velocity, so that, ever turning in its course, it revolves conformably to that other upon itself, being retained by the force that embraces it from flying off at a tangent, yet how can he assert that these bodies will remain unspent by their constant friction with each other? And how, again, is motion produced in the case of two coeval bodies mutually conformed, when the one remains motionless (for the inner body, one would have thought, being held as in a vice by the motionlessness of that which embraces it, will be quite unable to act); and what is it that maintains the embracing body in its fixedness, so that it remains unshaken and unaffected by the motion of that which fits into it? And if in restless curiosity of thought we should conceive of some position for it that should keep it stationary, we must go on in logical consistency to search for the base of that base, and of the next, and of the next, and so on, and so the inquiry, proceeding from like to like, will go on to infinity, and end in helpless perplexity, still, even when some body has been put for the farthest foundation of the system of the universe, reaching after what is beyond, so that there is no stopping in our inquiry after the limit of the embracing circles.
[1078] Gregory here refers to the apparent "retrograde" motion of the planets, i.e. that, while passing through part of their orbits, they appear to us to move in a direction contrary to the order of the Zodiac. In what follows he represents the views of the ancient astronomy, imagining a series of concentric spheres, allotted to the several planets, the planetary motions being accomplished by the rotation of the spheres. Beyond the planetary spheres is the sphere allotted to the fixed stars, within which the others revolve. See Gale, Opusc. Mythol. (1688), p 550; and Introduction to Colet's Lectures on Corinthians, pp. xl-xliii.
Reference address : https://www.elpenor.org/nyssa/against-eunomius-3.asp?pg=79
