The perfect may be either (1) “the perfect absolutely, or (2) the perfect in its kind.” The former again is twofold, according as it is (1) “that which is wholly in the whole and in every part, or (2) that which is wholly in the whole but not in the part.” Of these the one is divinity, the intellect of the universe, absolute goodness and truth, the other the immeasurable corporeal reflection of the divine. As within the universe there are many things perfect in their kind, which it combines in its unity, containing in itself the perfection of all, it may in a second sense be called the absolutely perfect. For no one world singly, nor system of worlds, nor any number of systems, can be brought into comparison with God, except indirectly, through the immeasurable wisdom, power, and goodness. “Nothing is absolutely imperfect or evil, for the highest nature exists in a certain sense in the meanest and lowest, as on the palette of a painter colours are thought little of which presently, unfolded into the scheme of the picture, shall seem to be, along with the painter himself, of chief importance.”[335] Moral evil, itself, as we shall find, has no reality for Bruno’s pantheism. Justice and goodness, not existing as abstract entities, have their only ground in the divine will, i.e. in the course of nature.[336] On the other hand, it is not in the part, the detail, the trivial or minute existence, that the divine will is most adequately declared, but in the whole, its plan and its law. “What is best and most glorious, most beseeming the goodness of His nature, is to be attributed to His will. It is impious to seek this in the blood of insects, in the mummied corpse, in the foam of the epileptic, under the shaking feet of murderers, or in the melancholy mysteries of vile necromancers;[337] it must be sought rather in the inviolable, intemerate law of nature, in the religion of a mind directed duly by that law, in the splendour of the sun, in the beauty of the things which are brought forth from this our parent, after His true image, as expressed bodily in the beauty of those innumerable living things, which, in the immeasurable sweep of the one heaven, shine and live, have sense and intelligence, and sing praises to the One, the highest and best.”[338]
CHAPTER IV
NATURE AND THE LIVING WORLDS
We have found that, according to Bruno, the universe is infinite in extent, and that there are innumerable worlds within it: it remains to know what are the materials that constitute the universe, and the moving principles that govern its changes and direct the worlds in their courses.
Uniformity of Nature.Nature, he said, is the same in kind, in its substance, and in its elements, throughout its whole extent—a daring conception for a time when the empyrean and all space beyond it were still regarded as the special abode of divinity. He reminded his opponents of his own childish experiences:—when from Cicala he looked towards Mount Vesuvius, he thought it dark, gloomy, bare of trees and flowers; but when he approached it, he found it fairer than Cicala itself, while now the latter looked bare and dark.[339] The Aristotelians were committing a similar error in judging the distant stars and the firmament to be in reality as they appeared to our eyes, and in denying the existence of that which was not visible to us. “As the philosopher must not believe what cannot be demonstrated by evidence, so neither must he foolishly despise or find fault with what cannot be disproved by reason.”[340] Had men, instead of bending so long over the books of Aristotle and his commentators, the nebulosa volumina, but turned their eyes to the book and light of nature, they would have formed a far different conception of the constitution of the heavens than that of the eight, nine, ten, or more spheres and innumerable epicycles of the Ptolemaic system. Bruno showed how as we rise from the surface of the earth our horizon becomes wider, while in detail less vivid, and he supposed himself to continue the ascension upwards to the surface of the moon.[341] A few miles away tree and mountain would not be distinguishable from the rest of the earth, but we should perceive only a wide circle of light with dark spots, the appearance of sea and of land respectively. As the distance increased the form of the earth would become more visible while it lost all appearance of opacity, and the whole would seem continuous light. As we neared the moon, the earth would come to appear exactly as the moon does to us from the earth. The moon also revolves round its own axis, and from it, as with us, the universe will appear to revolve round it as centre. It had been said that the appearance of the heavenly bodies had always been and continued to be the same, but Bruno points to the fact that although a mountain, when seen from at hand, changes its face from day to day, and from season to season, yet from a distance it seems always the same.[342] It is owing to the distance that the face of the moon appears to us never to change, although it is certainly subject to as many alterations as the earth itself; and to the dwellers on the moon the earth will appear equally changeless. The light and shadow seen on the surface of the moon are due to the variety of sea and land in it, the one reflecting light, the other absorbing. On the moon, as on the earth, Nature is in continuous change: for example, the relative positions of sea and land are ever altering; but the magnitude of the distance renders these invisible, and more especially the minuteness and gradual nature of the changes themselves. The lunar spectator will be presented with eclipses of the earth, and, according to the position of sea and land, i.e. of light and shadow, with phases of the earth.[343] In the same way Bruno applied his principle of similarity to show that from distant stars the earth would appear of uniform magnitude and unvarying position, while in the neighbourhood of other suns it and all the other planets would disappear. As matter is the same in kind throughout the universe, so it is subject everywhere to the same law of unceasing change:—“The sun in its rising never seeks twice the same point, all things by stress of the continuous flux are renewed, nor ever seek again the haunts they have left, nor is there any part of the earth which does not pass through every region, and a like force now carries each part in one direction or another, now drives it away; and if by chance any one revisit the centre, it is no longer in the same form, nor in the same connection (ordine).”[344] Not even the whole can ever be twice the same, since the order and arrangement of its parts are continuously changing. Even in things that seem ever to present the same face there is a latent alteration which time will bring to light. There would otherwise be nothing to prevent the whole of Nature being fixed, petrified, as it were, to all eternity. Yet the substance of things—the atom—is unchanging.[345] “All things are in flow; the parts of the earth, seas, and rivers vary their positions, by a certain ebbing and flowing order of Nature. As matter wanders, flowing in and out, now here, now there, so the forms travel through matter. For there is not any form which, once occupying a portion of matter, retains it always, nor any matter which, once obtaining a certain form, maintains it for ever. Hence it is that, matter always taking up one form or another, and having equal capacity for all, consequently by virtue of its eternity it must sometimes fall in with that which is able to bind it to itself for ever; if this were to happen, all things would be so constituted that there would be no alteration or difference in them.”[346]
The Ether.The universe to Bruno is transfused with spirit, soul or life, “the soul of the universe,” which animates its every part. “The seat or place of God is the universe, everywhere the whole immeasurable heaven, empty space, of which He is the fulness.” The material aspect, or, as Bruno sometimes seems to say, the body of this spirit is the ether, a subtle fluid distinguished from the air we breathe by the absence of moisture. The ether is a purely passive, non-resisting medium, permeating the universe, without quality, and unimpressionable by force or action; thus it is penetrated by the heat of any radiating body without diminishing its force. It took the place, for Bruno, of the mythical Fifth Essence, which had so long fed the dreams of philosophers—“Divine yet corporeal, material yet without matter, a form without privation, conjoining act with potency, neither heavy nor light, suffering neither generation, nor corruption, nor alteration, neither increase nor decrease; beyond which no sensible existence is, first-born and creatrix of Nature, simplest of beings, all-containing, most powerful, most active, most living, most perfect of existences, endowed with life and intelligence, of its own nature moving circularly, etc., etc.—all this is at length proved to have been a most portentous shadow without body.”[347] Heaven is either empty space, or it is an ethereal substance, “a very subtle kind of air, which is the first and most universal occupant of space.”[348] Again, the ether is described as a vapour or smoke, a nebulous matter, penetrating throughout the depths of the void, interpenetrating all things and embracing all; as not entering into movement of its own accord, for it is but an exhalation of the wind—a kind of continuous vapour such as is contained in the bowels of the earth: in it is neither heat nor cold nor any similar effect (passio), but it is the medium through which these are borne. All these require moisture: moisture alone can “fix” light or darkness or combine atoms into a concrete body and prevent their random flight through the air.[349] It has been claimed that in this and other passages Bruno anticipated the modern theory of the ether; it must be noted, however, that he expressly denies to its parts any kind of motion—it is only the composite body which moves—and that he speaks of this heaven or ether as the soul which is at once immanent in and comprehends the stars, i.e. as the soul of the universe.
Moisture.Of the strictly material elements of the universe, the most important is moisture or water. It is moisture which gives concreteness and therefore weight to things. Nothing has weight which has not been formed into one by the union of innumerable parts under the action of water.[350] Consistently with this, Bruno believed the heaviest bodies, as the metals, to be the most solid and concrete, and therefore to contain most moisture. It is moisture also which, penetrating through the arteries, veins, and bones of the earth, gives to it both variety of aspect and the power of life. The visible moisture on the earth’s surface, the seas and lakes, is a mere nothing as compared to that which is diffused through its interior—is but the sweat, as it were, of the earth’s body.[351] Bruno’s passion for homogeneity led him to understand that in its surface the land under the sea is similar to that above it, with which the former is continually changing place, and it is divided up into plains, mountains, valleys, the islands and rocks of the sea being the tops of the mountains:—a remarkable intuition of the truth, however arrived at. Earth: Fire.As to the familiar elements, earth and fire, Bruno could neither allow a special place or sphere nor a special direction of movement to either, as in the Aristotelian cosmology. The earth was not the centre of the universe, and there were earths or similar planets everywhere. To the several arguments of the Peripatetics[352] for the centrality of the earth,—from the heaviness, the darkness, solidity, composite character of the earth’s matter, and the movements of its parts, from the idea that contraries shun one another so that the coldest element, for example, should be in the centre, the hottest at the extreme,—Bruno opposed the common-sense answers that his own theory suggested to him. His appeal was always from “fictitious order” to the evidence of “sense and reason.” The argument has no longer any interest in itself, and to pursue it into detail would hardly be edifying; but so full is it, so weighty and so vigorous, that one wonders how even the “Peripatetics” failed to be convinced by it. Bruno’s very errors are interesting. Fire for example, far from being the outermost, lightest, subtlest element, was regarded by him as a body of which the substance, (light and heat being accidents) was water mixed with earth;[353] and in general, he maintained, no element was ever found in isolation. As to the supposed coldness of the central element,—the earth,—he believed, again anticipating future discoveries, that the centre of the earth was not cold, but hot, the source of terrestrial warmth; but the theory loses something of its value, scientifically, from the imagined vitality of the planet, by which it is supported.[354] It was natural that the coincidence of contraries should be brought to do duty against the maxim on which the Aristotelian view was really based—namely, that contraries tend to rest at the greatest possible distance from one another, against which Bruno marshalled a whole army of facts. Away from the shadow of the earth there was perhaps no light but that of the sun, too strong for our eyes, for the daylight arose from a mixture of the light of the sun and the darkness of the earth; we could see other colours by it, for the reason that they were similarly composed—mixtures of light and darkness. The heat of the sun also was only bearable when tempered by the coolness of the earth or other planets. The body of the earth, great as it is, can bear this heat only through its swift revolution. As to the objection that if the earth moved we should feel its motion, Bruno remarked that when we are carried in a smoothly and continuously moving vehicle, not striking against any object, we do not perceive that we are moving, except by comparison with some object known to us to be fixed. Thus sense furnishes its own correction.[355] The differences in the distances of the planets from the sun, as seen from the earth, are explained much more readily by the assumption that they and the earth itself are moving about the sun, than by that of the centrality of the earth, which compelled astronomers to the complicated device of the epicycles.[356] The fact that the moon always turns the same face towards the earth disproved the Ptolemaic theory: were it on an epicycle, as was supposed, this would be impossible. According to the old doctrine, the earth was fixed immovably in the centre of the universe, while about it circled the spheres of sun, planets, and fixed stars. With Bruno, on the other hand, the centre of the universe is everywhere, or nowhere,—in other words it is relative to the body on which the spectator is supposed to stand.
The principle of continuous change was employed to explain, among other matters, the variation of the equinoxes, which was already known to occur; but the continuous change was itself accounted for on teleological grounds.—“The motion which causes the poles to tremble, and the equinoctial and solstitial points to vary irregularly, is on account of the variations which are always taking place in parts of the earth; for the frigid zones may not always be frigid, nor the torrid, torrid; all parts must rest and have holiday from each kind of ‘affect,’ and consequently take up every kind of disposition successively.” ... “The centre of the earth, therefore, and its position relatively to the poles, will vary.”[357] No star ever repeats one day the revolution of the previous, or any one year that of another. Mathematical exactness, as we have seen, is never found in the material world: the earth may not always present the same face to the sun, so that one pole must at length pass into the place of the other—a change which must occur sensibly and continuously, and irregularly, as natural bodies and elements of bodies are naturally in continuous alteration and movement. “The same composite body is never in exactly the same state at any two moments, nor consists of quite the same parts, for from all sides and everywhere there is, necessarily, an unceasing influx and efflux of elementary bodies.”[358] The stars and planets are compared to a flock of birds, which float hither and thither in the clear ether, guided only by their desires.[359] Never does the flock present precisely the same appearance twice. In nature the law is vicissitude and succession, so that each thing may in actual fact come to be all things.[360]
Earths and Suns.All the stars consist of the same elements, since water cannot subsist without earth, nor fire without water; but in some stars the aqueous element predominates (planets), in others the igneous (suns). From sameness of appearance and of effects (accidents) we may infer sameness of substance. It is clear therefore to Bruno that moon, planets, stars, are all of precisely the same substance as the earth. It is unnecessary to point out by how long a period this brilliant philosophical faith preceded the slower if surer march of science. The great worlds of the universe are of two kinds—the suns, in which fire is the predominating element, and from which light is diffused; and the earths or planets, in which water predominates and which reflects light. To the first class belong the so-called fixed stars, from which our sun would appear no larger and no brighter than they appear to us; to the second belong the moon, Mercury, and other planets, all in one and the same ethereal space, suspended in free air and balanced by their own weight as is our earth. In all are seas and woods, rivers, men, cattle, reptiles, birds, fishes, as on the earth, and in all the same continuous changes occur.[361] No one is in the centre of the universe rather than another, for about all equally extends immeasurable space with its innumerable stars. Of these “first bodies” one kind could not exist without the other, for it is by the concourse of contraries and opposites that nature provides for movement, life, and growth in things. About each of the scintillating stars, or suns, which we see, there must circle planets which are for the most part invisible to us, but which may become visible.[362] In the same way, both on account of the smallness of their bodies, and especially on that of the less intensity of reflected light in comparison with light of original force, the planets which are about our fixed star, the sun, would not be seen from any of the others. The discovery in the last half-century of what is almost certainly a satellite of Sirius confirms in this also Bruno’s “anticipation of nature.” Comets.Another of these was his theory of comets,[363] which he held to be of the same nature as planets, and to move in similar orbits. He believed also that there were other solar planets which never appeared to us because their position in the heavens precluded their reflecting any of the sun’s rays to us:—a belief to which the reported eclipses of the sun by occult bodies has given some support. The shape of the comet, with its appendages, was only apparent, Bruno said, and was due to the angle made by the light reflected from its surface. In another reference, however, he compares it with the oblique reflection of light from a mirror, or from the surface of water; it is the watery matter, the vapours which are drawn out by the warmth of the sun, that give the unusual reflection.[364] This shows how nearly he approached the modern theory. In the true spirit of the Renaissance, however, he appealed to the authority of the ancients, of Aeschylus and Hipparchus of Chios, who, according to Aristotle, regarded the comets as planets.[365] The comets of the sixteenth century,[366] so far as observed, went wholly against the received view that their orbits must lie within the sphere of the moon, and proved that the substance of bodies beyond that sphere was the same as the elementary substance of the earth, as well as that there was penetrable space beyond. Both of these to Bruno were important consequences. Still greater, however, was their importance for humanity, in removing the grounds of the terror which comets and other heavenly wonders had hitherto inspired. “There are some,” said Bruno, “who rest their faith in a virtue above and beyond nature, saying that God, who is above nature, creates these appearances in the heavens in order to signify something to us: as if those were not better, nay the very best, signs of divinity which arise in the ordinary course of nature; among which are those of which we speak, for they also are not apart from this order, although their order is hidden from us.”
To account for the many appearances which seemed to conflict with his new view of the universe, Bruno had recourse to several slight experiments and analogies of daily observation such as a schoolmaster might employ at the present day before his class,[367] but by which even a man of Kepler’s intelligence refused then to be convinced; at least he would not openly profess his conviction. Among other fruitful suggestions which Bruno makes is that the sun may perhaps turn on its own axis, and again that it may contain vapour and earth.[368] He had a curious theory that the heat of the sun is only directed outward from the surface, not inwards; that this is the general course of radiation; and that it leaves an inner surface of the sun cold, on which solar animals live; finally that meteors are “animals” expelled from the sun! So always the fruitful idea is accompanied by the absurd.