"But if it be necessary to consider, in one Platonic dialogue, the all-perfect, whole and connected, extending as far as to the complete number of theology, I shall perhaps assert a paradox, and which will alone be apparent to our familiars. We ought however to dare, since we have begun the assertion, and affirm against our opponents, that the Parmenides, and the mystic conceptions of this dialogue, will accomplish all you desire. For in this dialogue, all the divine genera proceed in order from the first cause, and evince their mutual suspension from each other. And those indeed which are highest, connate with the one, and of a primary nature, are allotted a form of subsistence, characterized by unity, occult and simple; but such as are last are multiplied, are distributed into many parts, and excel in number, but are inferior in power to such as are of a higher order; and such as are middle, according to a convenient proportion, are more composite than their causes, but more simple than their proper progeny. And, in short, all the axioms of the theological science appear in perfection in this dialogue; and all the divine orders are exhibited subsisting in connection. So that this is nothing else than the celebrated generation of the gods, and the procession of every kind of being from the ineffable and unknown cause of wholes.[10] The Parmenides therefore, enkindles in the lovers of Plato the whole and perfect light of the theological science. But after this, the aforementioned dialogues distribute parts of the mystic discipline about the gods, and all of them, as I may say, participate of divine wisdom, and excite our spontaneous conceptions respecting a divine nature.

————————— [10] The principle of all things is celebrated by Platonic philosophy as the cause of wholes, because through transcendency of power he first produces those powers in the universe which rank as wholes, and afterward those which rank as parts through these. Agreeably to this Jupiter, the artificer of the universe, is almost always called [Greek: demiourgos ton olon], the demiurgus of wholes. See the Timaeus, and the Introduction to it. —————————

And it is necessary to refer all the parts of this mystic discipline to these dialogues, and these again to the one and all perfect theory of the Parmenides. For thus, as it appears to me, we shall suspend the more imperfect from the perfect, and parts from wholes, and shall exhibit reasons assimilated to things of which, according to the Platonic Timaeus, they are interpreters. Such then is our answer to the objection which may be urged against us; and thus we refer the Platonic theory to the Parmenides; just as the Timaeus is acknowledged by all who have the least degree of intelligence to contain the whole science about nature."

All that is here asserted by Proclus will be immediately admitted by the reader who understands the outlines which we have here given of the theology of Plato, and who is besides this a complete master of the mystic meaning of the Parmenides; which I trust he will find sufficiently unfolded, through the assistance of Proclus, in the introduction and notes to that dialogue.

The next important Platonic dogma in order, is that doctrine concerning ideas, about which the reader will find so much said in the notes on the Parmenides, that but little remains to be added here. That little however is as follows: The divine Pythagoras, and all those who have legitimately received his doctrines, among whom Plato holds the most distinguished rank, asserted that there are many orders of beings, viz. intelligible, intellectual, dianoetic, physical, or in short, vital and corporeal essences. For the progression of things, the subjection which naturally subsists together with such progression, and the power of diversity in coordinate genera give subsistence to all the multitude of corporeal and incorporeal natures. They said, therefore, that there are three orders in the whole extent of beings; viz. the intelligible, the dianoetic, and the sensible; and that in each of these ideas subsist, characterized by the respective essential properties of the natures by which they are contained. And with respect to intelligible ideas, these they placed among divine natures, together with the producing, paradigmatic, and final causes of things in a consequent order. For if these three causes sometimes concur, and are united among themselves, (which Aristotle says is the case), without doubt this will not happen in the lowest works of nature, but in the first and most excellent causes of all things, which on account of their exuberant fecundity have a power generative of all things, and from their converting and rendering similar to themselves the natures which they have generated, are the paradigms, or exemplars of all things. But as these divine causes act for their own sake, and on account of their own goodness, do they not exhibit the final cause? Since therefore intelligible forms are of this kind, and are the leaders of so much good to wholes, they give completion to the divine orders, though they largely subsist about the intelligible order contained in the artificer of the universe. But dianoetic forms or ideas imitate the intellectual, which have a prior subsistence, render the order of soul similar to the intellectual order, and comprehend all things in a secondary degree.

These forms beheld in divine natures possess a fabricative power, but with us they are only gnostic, and no longer demiurgic, through the defluxion of our wings, or degradation of our intellectual powers. For, as Plato says in the Phaedrus, when the winged powers of the soul are perfect and plumed for flight, she dwells on high, and in conjunction with divine natures governs the world. In the Timaeus, he manifestly asserts that the demiurgus implanted these dianoetic forms in souls, in geometric, arithmetic, and harmonic proportions: but in his Republic (in the section of a line in the 6th book) he calls them images of intelligibles; and on this account does not for the most part disdain to denominate them intellectual, as being the exemplars of sensible natures. In the Phaedo he says that these are the causes to us of reminiscence; because disciplines are nothing else than reminiscences of middle dianoetic forms, from which the productive powers of nature being derived and inspired, give birth to all the mundane phenomena.

Plato however did not consider things definable, or in modern language abstract ideas, as the only universals, but prior to these he established those principles productive of science which essentially reside in the soul, as is evident from his Phaedrus and Phaedo. In the 10th book of the Republic too, he venerates those separate forms which subsist in a divine intellect. In the Phaedrus, he asserts that souls elevated to the supercelestial place, behold Justice herself, temperance herself, and science herself; and lastly in the Phaedo he evinces the immortality of the soul from the hypothesis of separate forms.

Syrianus[11], in his commentary on the 13th book of Aristotle's Metaphysics, shows in defense of Socrates, Plato, the Parmenideans, and Pythagoreans, that ideas were not introduced by these divine men according to the usual meaning of names, as was the opinion of Chrysippus, Archedemus, and many of the junior Stoics; for ideas are distinguished by many differences from things which are denominated from custom. Nor do they subsist, says he, together with intellect, in the same manner as those slender conceptions which are denominated universals abstracted from sensibles, according to the hypothesis of Longinus:[12] for if that which subsists is unsubstantial, it cannot be consubsistent with intellect.

————————- [11] See my translation of Aristotle's Metaphysics, p. 347. If the reader conjoins what is said concerning ideas in the notes on that work, with the introduction and notes to the Parmenides in this, he will be in possession of nearly all that is to be found in the writings of the ancients on this subject.

[12] It appears from this passage of Syrianus that Longinus was the original inventor of the theory of abstract ideas; and that Mr. Locke was merely the restorer of it. ————————-

Nor are ideas according to these men notions, as Cleanthes afterwards asserted them to be. Nor is idea definite reason, nor material form; for these subsist in composition and division, and verge to matter. But ideas are perfect, simple, immaterial, and impartible natures. And what wonder is there, says Syrianus, if we should separate things which are so much distant from each other? Since neither do we imitate in this particular Plutarch, Atticus, and Democritus, who, because universal reasons perpetually subsist in the essence of the soul, were of opinion that these reasons are ideas: for though they separate them from the universal in sensible natures, yet it is not proper to conjoin in one and the same the reason of soul, and an intellect such as ours, with paradigmatic and immaterial forms, and demiurgic intellections. But as the divine Plato says, it is the province of our soul to collect things into one by a reasoning process, and to possess a reminiscence of those transcendent spectacles, which we once beheld when governing the universe in conjunction with divinity. Boethus,[13] the peripatetic too, with whom it is proper to join Cornutus; thought that ideas are the same with universals in sensible natures. However, whether these universals are prior to particulars, they are not prior in such a manner as to be denudated from the habitude which they possess with respect to them, nor do they subsist as the causes of particulars; both which are the prerogatives of ideas; or whether they are posterior to particulars, as many are accustomed to call them, how can things of posterior origin, which have no essential subsistence, but are nothing more than slender conceptions, sustain the dignity of fabricative ideas?

—————————- [13] This was a Greek philosopher, who is often cited by Simplicius in his Commentary on the Predicaments, and must not therefore be confounded with Boetius, the roman senator and philosopher. —————————-

In what manner then, says Syrianus, do ideas subsist according to the contemplative lovers of truth? We reply, intelligibly and tetradically ([Greek: noeros kai tetradikos]), in animal itself ([Greek: en to antozoo]), or the extremity of the intelligible order; but intellectually and decadically ([Greek: noeros kai dekadikos]), in the intellect of the artificer of the universe; for, according to the Pythagoric Hymn, "Divine number proceeds from the retreats of the undecaying monad, till it arrives at the divine tetrad which produced the mother of all things, the universal recipient, venerable, circularly investing all things with bound, immovable and unwearied, and which is denominated the sacred decad, both by the immortal gods and earth-born men."

[Greek: Proeisi gar o Theios arithmos, os phesin o Pythagoreios eis auton umnos, Monados ek keuthmonos akeralou esti'an iketai Tetrada epi zatheen, he de teke metera panton, Pandechea, presbeiran, oron peri pasi titheiran, Atropon, akamatou, dekada kleiousi min agnen, Athanatoi to theoi kai gegeneeis anthropoi.]

And such is the mode of their subsistence according to Orpheus, Pythagoras and Plato. Or if it be requisite to speak in more familiar language, an intellect sufficient to itself, and which is a most perfect cause, presides over the wholes of the universe, and through these governs all its parts; but at the same time that it fabricates all mundane natures, and benefits them by its providential energies, it preserves its own most divine and immaculate purity; and while it illuminates all things, is not mingled with the natures which it illuminates. This intellect, therefore, comprehending in the depths of its essence an ideal world, replete with all various forms, excludes privation of cause and casual subsistence, from its energy. But as it imparts every good and all possible beauty to its fabrications, it converts the universe to itself, and renders it similar to its own omniform nature. Its energy, too, is such as its intellection; but it understands all things, since it is most perfect. Hence there is not any thing which ranks among true beings, that is not comprehended in the essence of intellect; but it always establishes in itself ideas, which are not different from itself and its essence, but give completion to it, and introduce to the whole of things, a cause which is at the same time productive, paradigmatic, and final. For it energizes as intellect, and the ideas which it contains are paradigmatic, as being forms; and they energize from themselves, and according to their own exuberant goodness. And such are the Platonic dogmas concerning ideas, which sophistry and ignorance may indeed oppose, but will never be able to confute.

From this intelligible world, replete with omniform ideas, this sensible world, according to Plato, perpetually flows, depending on its artificer intellect, in the same manner as shadow on its forming substance. For as a deity of an intellectual characteristic is its fabricator, and both the essence and energy of intellect are established in eternity the sensible universe, which is the effect or production of such an energy, must be consubsistent with its cause, or in other words, must be a perpetual emanation from it. This will be evident from considering that every thing which is generated, is either generated by art or by nature, or according to power. It is necessary, therefore, that every thing operating according to nature or art should be prior to the things produced; but that things operating according to power should have their productions coexistent with themselves; just as the sun produces light coexistent with itself; fire, heat; and snow, coldness. If therefore the artificer of the universe produced it by art, he would not cause it simply to be, but to be in some particular manner; for all art produces form. Whence therefore does the world derive its being? If he produced it from nature, since that which makes by nature imparts something of itself to its productions, and the maker of the world is incorporeal, it would be necessary that the world, the offspring of such an energy, should be incorporeal. It remains therefore, that the demiurgus produced the universe by power alone; but every thing generated by power subsists together with the cause containing this power: and hence production of this kind cannot be destroyed unless the producing cause is deprived of power. The divine intellect therefore that produced the sensible universe caused it to be coexistent with himself.

This world thus depending on its divine artificer, who is himself an intelligible world replete with the archetypal ideas of all things, considered according to its corporeal nature, is perpetually flowing, and perpetually advancing to being (en to gignesthai), and compared with its paradigm, has no stability or reality of being. However, considered as animated by a divine soul, and as receiving the illuminations of all the supermundane gods, and being itself the receptacle of divinities from whom bodies are suspended, it is said by Plato in the Timaeus to be a blessed god. The great body of this world too, which subsists in a perpetual dispersion of temporal extension, may be properly called a whole with a total subsistence, on account of the perpetuity of its duration, though this is nothing more than a flowing eternity. And hence Plato calls it a whole of wholes; by the other wholes which are comprehended in its meaning, the celestial spheres, the sphere of fire, the whole of air considered as one great orb; the whole earth, and the whole sea. These spheres, which are called by Platonic writers parts with a total subsistence, are considered by Plato as aggoregately perpetual. For if the body of this world is perpetual, this also must be the case with its larger parts, on account of their exquisite alliance to it, and in order that wholes with a partial subsistence, such as all individuals, may rank in the last gradation of things.

As the world too, considered as one great comprehending whole, is called by Plato a divine animal, so likewise every whole which it contains is a world, possessing in the first place, a self-perfect unity; proceeding from the ineffable, by which it becomes a god; in the second place, a divine intellect; in the third place, a divine soul; and in the last place, a deified body. Hence each of these wholes is the producing cause of all the multitude which it contains, and on this account is said to be a whole prior to parts; because, considered as possessing an eternal form which holds all its parts together, and gives to the whole perpetuity of subsistence, it is not indigent of such parts to the perfection of its being. That these wholes which rank thus high in the universe are animated, must follow by a geometrical necessity. For, as Theophrastus well observes, wholes would possess less authority than parts, and things eternal than such as are corruptible, if deprived of the possession of soul.

And now having with venturous, yet unpresuming wing, ascended to the ineffable principle of things, and standing with every eye closed in the vestibules of the adytum, found that we could announce nothing concerning him, but only indicate our doubts and disappointment, and having thence descended to his occult and most venerable progeny, and passing through the luminous world of ideas, holding fast by the golden chain of deity, terminated our downward flight in the material universe, and its undecaying wholes, let us stop awhile and contemplate the sublimity and magnificence of the scene which this journey presents to our view. Here then we see the vast empire of deity, an empire terminated upwards by a principle so ineffable that all language is subverted about it, and downwards, by the vast body of the world. Immediately subsisting after this immense unknown we in the next place behold a mighty all- comprehending one, which as being next to that which is in every respect incomprehensible, possesses much of the ineffable and unknown. From this principle of principles, in which all things casually subsist absorbed in superessential light and involved in unfathomable depths, we view a beauteous progeny of principles, all largely partaking of the ineffable, all stamped with the occult characters of deity, all possessing an over-flowing fullness of good. From these dazzling summits, these ineffable blossoms, these divine propagations, we next see being, life, intellect, soul, nature and body depending; monads suspended from unities, deified natures proceeding from deities. Each of these monads too, is the leader of a series which extends from itself to the last of things, and which while it proceeds from, at the same time abides in, and returns to its leader. And all these principles and all their progeny are finally centred, and rooted by their summits in the first great all- comprehending one. Thus all beings proceed from, and are comprehended in the first being; all intellects emanate from one first intellect; all souls from one first soul; all natures blossom from one first nature; and all bodies proceed from the vital and luminous body of the world. And lastly, all these great monads are comprehended in the first one, from which both they and all their depending series are unfolded into light. Hence this first one is truly the unity of unities, the monad of monads, the principle of principles, the God of gods, one and all things, and yet one prior to all.

Such, according to Plato, are the flights of the true philosopher, such the August and magnificent scene which presents itself to his view. By ascending these luminous heights, the spontaneous tendencies of the soul to deity alone find the adequate object of their desire; investigation here alone finally reposes, doubt expires in certainty, and knowledge loses itself in the ineffable.

And here perhaps some grave objector, whose little soul is indeed acute, but sees nothing with a vision healthy and sound, will say that all this is very magnificent, but that it is soaring too high for man; that it is merely the effect of spiritual pride; that no truths, either in morality or theology, are of any importance which are not adapted to the level of the meanest capacity; and that all that it is necessary for man to know concerning either God or himself is so plain, that he that runs may read. In answer to such like cant, for it is nothing more,—a cant produced by the most profound ignorance, and frequently attended with the most deplorable envy, I ask, is then the Delphic precept, KNOW THYSELF, a trivial mandate? Can this be accomplished by every man? Or can any one properly know himself without knowing the rank he holds in the scale of being? And can this be effected without knowing what are the natures which he surpasses, and what those are by which he is surpassed? And can he know this without knowing as much of those natures as it is possible for him to know? And will the objector be hardy enough to say that every man is equal to this arduous task? That he who rushes from the forge, or the mines, with a soul distorted, crushed and bruised by base mechanical arts, and madly presumes to teach theology to a deluded audience, is master of this sublime, this most important science? For my own part I know of no truths which are thus obvious, thus accessible to every man, but axioms, those self-evident principles of science which are conspicuous by their own light, which are the spontaneous unperverted conceptions of the soul, and to which he who does not assent deserves, as Aristotle justly remarks, either pity or correction. In short, if this is to be the criterion of all moral and theological knowledge, that it must be immediately obvious to every man, that it is to be apprehended by the most careless inspection, what occasion is there for seminaries of learning? Education is ridiculous, the toil of investigation is idle. Let us at once confine Wisdom in the dungeons of Folly, recall Ignorance from her barbarous wilds, and close the gates of Science with everlasting bars.

Having thus taken a general survey of the great world, and descended from the intelligible to the sensible universe, let us still, adhering to that golden chain which is bound round the summit of Olympus, and from which all things are suspended, descend to the microcosm man. For man comprehends in himself partially everything which the world contains divinely and totally. Hence, according to Pluto, he is endued with an intellect subsisting in energy, and a rational soul proceeding from the same father and vivific goddess as were the causes of the intellect and soul of the universe. He has likewise an ethereal vehicle analogous to the heavens, and a terrestrial body, composed from the four elements, and with which also it is coordinate.

With respect to his rational part, for in this the essence of man consists, we have already shown that it is of a self-motive nature, and that it subsists between intellect, which is immovable both in essence and energy, and nature, which both moves and is moved. In consequence of this middle subsistence, the mundane soul, from which all partial souls are derived, is said by Plato in the Timaeus, to be a medium between that which is indivisible and that which is divisible about bodies, i.e. the mundane soul is a medium between the mundane intellect, and the whole of that corporeal life which the world participates. In like manner, the human soul is a medium between a daemoniacal intellect proximately, established above our essence, which it also elevates and perfects, and that corporeal life which is distributed about our body, and which is the cause of its generation, nutrition and increase. This daemoniacal intellect is called by Plato, in the Phaedrus, theoretic and, the governor of the soul. The highest part therefore of the human soul is the summit of the dianoetic power ([Greek: to akrotaton tes dianoias]), or that power which reasons scientifically; and this summit is our intellect. As, however, our very essence is characterized by reason, this our summit is rational, and though it subsists in energy, yet it has a remitted union with things themselves. Though too it energizes from itself, and contains intelligibles in its essence, yet from its alliance to the discursive nature of soul, and its inclination to that which is divisible, it falls short of the perfection of an intellectual essence and energy profoundly indivisible and united, and the intelligibles which it contains degenerate from the transcendently fulged and self-luminous nature of first intelligibles. Hence, in obtaining a perfectly indivisible knowledge, it requires to be perfected by an intellect whose energy is ever vigilant and unremitted; and it's intelligibles, that they may become perfect, are indigent of the light which proceeds from separate intelligibles. Aristotle, therefore, very properly compares the intelligibles of our intellect to colors, because these require the splendour of the sun, and denominates an intellect of this kind, intellect in capacity, both on account of its subordination to an essential intellect, and because it is from a separate intellect that it receives the full perfection of its nature. The middle part of the rational soul is called by Plato, dianoia, and is that power which, as we have already said, reasons scientifically, deriving the principles of its reasoning, which are axioms from intellect. And the extremity of the rational soul is opinion, which in his Sophista he defines to be that power which knows the conclusion of dianoia. This power also knows the universal in sensible particulars, as that every man is a biped, but it knows only the oti, or that a thing is, but is ignorant of the dioti, or why it is: knowledge of the latter kind being the province of the dianoetic power.

And such is Plato's division of the rational part of our nature, which he very justly considers as the true man; the essence of every thing consisting in its most excellent part.

After this follows the irrational nature, the summit of which is the phantasy, or that power which perceives every thing accompanied with figure and interval; and on this account it may be called a figured intelligence ([Greek: morphotike noesis]). This power, as Jamblichus beautifully observes, groups upon, as it were, and fashions all the powers of the soul; exciting in opinion the illuminations from the senses, and fixing in that life which is extended with body, the impressions which descend from intellect. Hence, slays Proclus, it folds itself about the indivisibility of true intellect, conforms itself to all formless species, and becomes perfectly every thing, from which the dianoetic power and our indivisible reason consists. Hence too, it is all things passively which intellect is impassively, and on this account Aristotle calls it passive intellect. Under this subsist anger and desire, the former resembling a raging lion, and the latter a many-headed beast; and the whole is bounded by sense, which is nothing more than a passive perception of things, and on this account is justly said by Plato, to be rather passion than knowledge; since the former of these is characterized by alertness, and the latter by energy.

Further still, in order that the union of the soul with this gross terrestrial body may be effected in a becoming manner, two vehicles, according to Plato, are necessary as media, one of which is ethereal, and the other aerial, and of these, the ethereal vehicle is simple and immaterial, but the aerial, simple and material; and this dense earthly body is composite and material.

The soul thus subsisting as a medium between natures impartible and such as are divided about bodies, it produces and constitutes the latter of these; but establishes in itself the prior causes from which it proceeds. Hence it previously receives, after the manner of an exemplar, the natures to which it is prior as their cause; but it possesses through participation, and as the blossoms of first natures, the causes of its subsistence. Hence it contains in its essence immaterial forms of things material, incorporeal of such as are corporeal, and extended of such as are distinguished by interval. But it contains intelligibles after the manner of an image, and receives partibly their impartible forms, such as are uniform variously, and such as are immovable, according to a self-motive condition. Soul therefore is all things, and is elegantly said by Olympiodorus to be an omniform statue ([Greek: pammorphon agalma]): for it contains such things as are first through participation, but such as are posterior to its nature, after the manner of an exemplar.

As, too, it is always moved; and this always is not eternal, but temporal, for that which is properly eternal, and such is intellect, is perfectly stable, and has no transitive energies, hence it is necessary that its motions should be periodic. For motion is a certain mutation from some things into others. And beings are terminated by multitudes and magnitudes. These therefore being terminated, there can neither be an infinite mutation, according to a right line, nor can that which is always moved proceed according to a finished progression. Hence that which is always moved will proceed from the same to the same; and will thus form a periodic motion. Hence, too, the human, and this also is true of every mundane soul, uses periods and restitutions of its proper life. For, in consequence of being measured by time, it energizes transitively, and possesses a proper motion. But every thing which is moved perpetually and participates of time, revolves periodically and proceeds from the same to the same. And hence the soul, from possessing motion, and energizing according to time, will both possess periods of motion and restitutions to its pristine state.

Again, as the human soul, according to Plato, ranks among the number of those souls that sometimes follow the mundane divinities, in consequence of subsisting immediately after daemons and heroes, the perpetual attendants of the gods, hence it possesses a power of descending infinitely into generation, or the sublunary region, and of ascending from generation to real being. For since it does not reside with divinity through an infinite time, neither will it be conversant with bodies through the whole succeeding time. For that which has no temporal beginning, both according to Plato and Aristotle, cannot have an end; and that which has no end, is necessarily without a beginning. It remains, therefore, that every soul must perform periods, both of ascensions from generation, and of descensions into generation; and that this will never fail, through an infinite time.

From all this it follows that the soul, while an inhabitant of earth, is in a fallen condition, an apostate from deity, an exile from the orb of light. Hence Plato, in the 7th book of his Republic, considering our life with reference to erudition and the want of it, assimilates us to men in a subterranean cavern, who have been there confined from their childhood, and so fettered by chains as to be only able to look before them to the entrance of the cave which expands to the light, but incapable through the chain of turning themselves round. He supposes too, that they have the light of a fire burning far above and behind them; and that between the fire and the fettered men, there is a road above, along which a low wall is built. On this wall are seen men bearing utensils of every kind, and statues in wood and stone of men and other animals. And of these men some are speaking and others silent. With respect to the fettered men in this cave, they see nothing of themselves or another, or of what is carrying along, but the shadows formed by the fire falling on the opposite part of tho cave. He supposes too, that the opposite part of this prison has an echo; and that in consequence of this the fettered men, when they hear any one speak, will imagine that it is nothing else than the passing shadow.

Here, in the first place, as we have observed in the notes on that book, the road above between the fire and the fettered men, indicates that there is a certain ascent in the cave itself from a more abject to a more elevated life. By this ascent, therefore Plato signifies the contemplation of dianoetic objects in the mathematical disciplines. For as the shadows in the cave correspond to the shadows of visible objects, and visible objects are the immediate images of dianoetic forms, or those ideas which the soul essentially participates, it is evident that the objects from which these shadows are formed must correspond to such as are dianoetic. It is requisite, therefore, that the dianoetic power exercising itself in these, should draw forth the principles of these from their latent retreats, and should contemplate them not in images, but as subsisting in herself in impartible involution.

In the next place he says, "that the man who is to be led from the cave will more easily see what the heavens contain, and the heavens themselves, by looking in the night to the light of the stars, and the moon, than by day looking on the sun, and the light of the sun." By this he signifies the contemplation of intelligibles: for the stars and their light are imitations of intelligibles, so far as all of them partake of the form of the sun, in the same manner as intelligibles are characterized by the nature of the good.

After the contemplation of these, and after the eye is accustomed through these to the light, as it is requisite in the visible region to see the sun himself in the last place, in like manner, according to Plato, the idea of the good must be seen the last in the intelligible region. He, likewise divinely adds, that it is scarcely to be seen; for we can only be conjoined with it through the intelligible, in the vestibule of which it is beheld by the ascending soul.

In short, the cold, according to Plato, can only be restored while on earth to the divine likeness, which she abandoned by her descent, and be able after death to reascend to the intelligible world, by the exercise of the cathartic and theoretic virtues; the former purifying her from the defilements of a mortal nature, and the latter elevating her to the vision of true being: for thus, as Plato says in the Timaeus, "the soul becoming sane and entire, will arrive at the form of her pristine habit." The cathartic, however, must necessarily precede the theoretic virtues; since it is impossible to survey truth while subject to the perturbation and tumult of the passions. For the rational soul subsisting as a medium between intellect and the irrational nature, can then only without revulsion associate with the intellect prior to herself, when she becomes pure from copassivity with inferior natures. By the cathartic virtues, therefore, we become sane, in consequence of being liberated from the passions as diseases; but we become entire by the reassumption of intellect and science as of our proper parts; and this is effected by contemplative truth. Plato also clearly teaches us that our apostacy from better natures is only to be healed by a flight from hence, when he defines in his Theaetetus philosophy to be a flight from terrestrial evils: for he evinces by this that passions are connascent with mortals alone. He likewise says in the same dialogue, "that neither can evil be abolished, nor yet do they subsist with the gods, but that they necessarily revolve about this terrene abode, and a mortal nature." For those who are obnoxious to generation and corruption can also be affected in a manner contrary to nature, which is the beginning of evils. But in the same dialogue he subjoins the mode by which our flight from evil is to be accomplished. "It is necessary," says he "to fly from hence thither: but the flight is a similitude to divinity, as far as is possible to man; and this similitude consists in becoming just and holy in conjunction with intellectual prudence." For it is necessary that he who wishes to run from evils, should in the first place turn away from a mortal nature; since it is not possible for those who are mingled with it to avoid being filled with its attendant evils. As therefore, through our flight from divinity, and the defluction of those wings which elevate us on high, we fell into this mortal abode, and thus became connected with evils, so by abandoning passivity with a mortal nature, and by the germination of the virtues, as of certain wings, we return to the abode of pure and true good, and to the possession of divine felicity. For the essence of many subsisting as a medium between daemoniacal natures, who always have an intellectual knowledge of divinity, and those beings who are never adapted by nature to understand him, it ascends to the former and descends to the latter, through the possession and desertion of intellect. For it becomes familiar both with the divine and brutal likeness, through the amphibious condition of its nature.

When the soul therefore has recovered her pristine perfection in as great a degree as is possible, while she is an inhabitant of earth by the exercise of the cathartic and theoretic virtues, she returns after death, as he says in the Timaeus, to her kindred star, from which she fell, and enjoys a blessed life. Then, too, as he says in the Phaedrus, being winged, she governs the world in conjunction with the gods. And this indeed is the most beautiful end of her labors. This is what he calls in the Phaedo, a great contest and a mighty hope. This is the most perfect fruit of philosophy to familiarize and lead her back to things truly beautiful, to liberate her from this terrene abode as from a certain subterranean cavern of material life, elevate her to ethereal splendors, and place her in the islands of the blessed.

From this account of the human soul, that most important Platonic dogma necessarily follows, that our soul essentially contains all knowledge, and that whatever knowledge she acquires in the present life, is in reality nothing more than a recovery of what a he once possessed. This recovery is very properly called by Plato reminiscence, not as being attended with actual recollection in the present life, but as being an actual repossession of what the soul had lost through her oblivious union with the body. Alluding to this essential knowledge of the soul, which discipline evocates from its dormant retreats, Plato says in the Sophista, "that we know all things as in a dream, and are again ignorant of them, according to vigilant perception." Hence too, as Proclus well observes, it is evident that the soul does not collect her knowledge from sensibles, nor from things partial and divisible discover the whole and the one. For it is not proper to think that things which have in no respect a real subsistence, should be the leading causes of knowledge to the soul; and that things which oppose each other and are ambiguous, should precede science which has a sameness of subsistence; nor that things which are variously mutable, should be generative of reasons which are established in unity; nor that things indefinite should be the causes of definite intelligence. It is not fit, therefore, that the truth of things eternal should be received from the many, nor the discrimination of universals from sensibles, nor a judgment respecting what is good from irrational natures; but it is requisite that the soul entering within herself, should investigate herself the true and the good, and the eternal reasons of things.

We have said that discipline awakens the dormant knowledge of the soul; and Plato considered this as particularly effected by the mathematical discipline. Hence, he asserts of theoretic arithmetic that it imparts no small aid to our ascent to real being, and that it liberates us from the wandering and ignorance about a sensible nature. Geometry too is considered by him as most instrumental to the knowledge of the good, when it is not pursued for the sake of practical purposes, but as the means of ascent to an intelligible essence. Astronomy also is useful for the purpose of investigating the fabricator of all things, and contemplating as in most splendid images the ideal world, and its ineffable cause. And lastly music, when properly studied, is subservient to our ascent, viz. when from sensible we betake ourselves to the contemplation of ideal and divine harmony. Unless, however, we thus employ the mathematical discipline, the study of them is justly considered by Plato as imperfect and useless, and of no worth. For as the true end of man according to his philosophy is an assimilation to divinity, in the greatest perfection of which human nature is capable, whatever contributes to this is to be ardently pursued; but whatever has a different tendency, however necessary it may be to the wants and conveniences of the mere animal life, is comparatively little and vile. Hence it necessary to pass rapidly from things visible and audible, to those which are alone seen by the eye of intellect. For the mathematical sciences, when properly studied, move the inherent knowledge of the soul; awaken its intelligence; purify its dianoetic power; call forth its essential forms from their dormant retreats; remove that oblivion and ignorance which are congenial with our birth; and dissolve the bonds arising from our union with an irrational nature. It is therefore beautifully said by Plato in the 7th book of his Republic, "that the soul through these disciplines has an organ purified and enlightened, which is blinded and buried by studies of a different kind, an organ better worth saving than ten thousand eyes, since truth becomes visible through this alone."

Dialectic, however, or the vertex of the mathematical sciences, as it is called by Plato in his Republic, is that master discipline which particularly leads us up to an intelligible essence. Of this first of sciences, which is essentially different from vulgar logic, and is the same with what Aristotle calls the first philosophy and wisdom, I have largely spoken in the introduction and notes to the Parmenides. Suffice it therefore to observe in this place, that dialectic differs from mathematical science in this, that the latter flows from, and the former is void of hypothesis. That dialectic has a power of knowing universals; that it ascends to good and the supreme cause of all; and, that it considers good as the end of its elevation; but that the mathematical science, which previously fabricates for itself definite principles, from which it evinces things consequent to such principles, does not tend to the principle, but to the conclusion. Hence Plato does not expel mathematical knowledge from the number of the sciences, but asserts it to be the next in rank to that one science which is the summit of all; nor does he accuse it as ignorant of its own principles, but considers it as receiving these from the master science dialectic, and that possessing them without any demonstration, it demonstrates from these its consequent propositions.

Hence Socrates, in the Republic, speaking of the power of dialectic, says that it surrounds all disciplines like a defensive enclosure, and elevates those that use it to the good itself, and the first unities; that it purifies the eye of the soul; establishes itself in true beings, and, the one principle of all things, and ends at last in that which is no longer hypothetical. The power of dialectic, therefore, being thus great, and the ends of this path so mighty, it must by no means be confounded with arguments which are alone conversant with opinion: for the former is the guardian of sciences, and the passage to it is through these, but the latter is perfectly destitute of disciplinative science. To which we may add, that the method of reasoning which is founded in opinion, regards only that which is apparent; but the dialectic method endeavors to arrive at the one itself, always employing for this purpose steps of ascent, and at last beautifully ends in the nature of the good. Very different therefore is it from the merely logical method, which presides over the demonstrative phantasy, is of a secondary nature, and is alone pleased with contentious discussions. For the dialectic of Plato for the most part employs divisions and analyses as primary sciences, and as imitating the progression of beings from the one, and their conversion to it again. It likewise sometimes uses definitions and demonstrations, and prior to these the definitive method, and the divisive prior to this. On the contrary, the merely logical method, which is solely conversant with opinion, is deprived of the incontrovertible reasonings of demonstration.

The following is a specimen of the analytical method of Plato's dialectic. Of analysis there are three species. For one is an ascent from sensibles to the first intelligibles; a second is an ascent through things demonstrated and subdemonstrated, to undemonstrated and immediate propositions; and a third proceeds from hypothesis to unhypothetical principles. Of the first of these species, Plato has given a most admirable specimen in the speech of Diotima in the Banquet. For there he ascends from the beauty about bodies to the beauty in souls; from this to the beauty in right disciplines; from this again to the beauty in laws; from the beauty in laws to the ample sea of beauty (Greek: to polu pelagos tou kalou); and thus proceeding he at length arrives at the beautiful itself.

The second species of analysis is as follows: It is necessary to make the thing investigated the subject of hypothesis; to survey such things as are prior to it; and to demonstrate these from things posterior, ascending to such as are prior, till we arrive at the first thing and to which we give our assent. But beginning from this, we descend synthetically to the thing investigated. Of this species, the following is an example from the Phaedrus of Plato. It is inquired if the soul is immortal; and this being hypothetically admitted, it is inquired in the next place if it is always moved. This being demonstrated, the next inquiry is if that which is always moved, is self-moved; and this again being demonstrated, it is considered whether that which is self-moved is the principle of motion, and afterwards if the principle is unbegotten. This then being admitted as a thing acknowledged, and likewise that what is begotten is incorruptible, the demonstration of the thing proposed is thus collected. If there is a principle, it is unbegotten and incorruptible. That which is self-moved is the principle of motion. Soul is self-moved. Soul therefore (i.e. the rational soul) is incorruptible, unbegotten, and immortal.

Of the third species of analysis, which proceeds from the hypothetical to that which is unhypothetical, Plato has given a most beautiful specimen in the first hypothesis of his Parmenides. For here, taking for his hypothesis that the one is, he proceeds through an orderly series of negations, which are not privative of their subjects, but generative of things which are as it were, their opposites, till he at length takes away the hypothesis that the one is. For he denies of it all discourse and every appellation. And thus evidently denies of it not only that it is, but even negation. For all things are posterior to the one; viz. things known, knowledge, and the instruments of knowledge. And thus, beginning from the hypothetical, he ends in that which is unhypothetical, and truly ineffable.

Having taken a general survey, both of the great world and the microcosm man, I shall close this account of the principal dogmas of Plato, with the outlines of his doctrine concerning Providence and Fate, as it is a subject of the greatest importance, and the difficulties in which it is involved are happily removed by that prince of philosophers.

In the first place, therefore, Providence, according to common conceptions, is the cause of good to the subjects of its care; and Fate is the cause of a certain connection to generated natures. This being admitted, let us consider what the things are which are connected. Of beings, therefore, some have their essence in eternity, and others in time. But by beings whose essence is in eternity, I mean those whose energy as well as their essence is eternal; and by beings essentially temporal, those whose essence is always in generation, or becoming to be, though this should take place in an infinite time. The media between these two extremes are natures which, in a certain respect, have an essence permanent and better than generation, or a flowing subsistence, but whose energy is measured by time. For it is necessary that every procession from things first to last should be effected through media. The medium, therefore, between these two extremes, must either be that which has an eternal essence, but any energy indigent of time, or, on the contrary, that which has a temporal essence, but an eternal energy. It is impossible, however, for the latter of these to have any subsistence; for if this were admitted, energy would be prior to essence. The medium, therefore, must be that whose essence is eternal, but energy temporal. And the three orders which compose this first middle and last are, the intellectual, psychical (or that pertaining to soul), and corporeal. For from what has been already said by us concerning the gradation of beings, it is evident that the intellectual order is established in eternity, both in essence and energy; that the corporeal order is always in generation, or advancing to being, and this either in an infinite time, or in a part of time; and that the psychical is indeed eternal in essence, but temporal in energy. Where then shall we rank things which being distributed either in places or times, have a certain coordination and sympathy with each other through connection? It is evident that they must be ranked among altermotive and corporeal natures. For of things which subsist beyond the order of bodies, some are better both than place and time; and others, though they energize according to time, appear to be entirely pure from any connection with place.

Hence things which are governed and connected by Fate are entirely altermotive and corporeal. If this then is demonstrated, it is manifest that admitting Fate to be a cause of connection, we must assert that it presides over altermotive and corporeal natures. If, therefore, we look to that which is the proximate cause of bodies, and thorough which also altermotive beings are moved, breathe, and are held together, we shall find that this is nature, the energies of which are to generate, nourish, and increase. If, therefore, this power not only subsists in us, and all other animals and plants, but prior to partial bodies there is, by a much greater necessity, one nature of the world which comprehends and is motive of all bodies; it follows that nature must be the cause of things connected, and that in this we must investigate Fate. Hence, Fate is nature, or that incorporeal power which is the one life of the world, presiding over bodies, moving all things according to time, and connecting the motions of things that, by places and times, are distant from each other. It is likewise the cause of the mutual sympathy of mortal natures, and of their conjunction with such as are eternal. For the nature which is in us, binds and connects all the parts of our body, of which also it is a certain Fate. And as in our body some parts have a principal subsistence, and others are less principal, and the latter are consequent to the former, so in the universe, the generations of the less principal parts are consequent to the motions of the more principal, viz. the sublunary generations to the periods of the celestial bodies; and the circle of the former is the image of the latter.

Hence it is not difficult to see that Providence is deity itself, the fountain of all good. For whence can good be imparted, to all things, but from divinity? So that no other cause of good but deity is, as Plato says, to be assigned. And, in the next place, as this cause is superior to all intelligible and sensible natures, it is consequently superior to Fate. Whatever too is subject to Fate, is also under the dominion of Providence; having its connection indeed from Fate, but deriving the good which it possesses from Providence. But again, not all things that are under the dominion of Providence are indigent of Fate; for intelligibles are exempt from its sway. Fate therefore is profoundly conversant with corporeal natures; since connection introduces time and corporeal motion. Hence Plato, looking to this, says in the Timaeus, that the world is mingled from intellect and necessity, the former ruling over the latter. For by necessity here he means the motive cause of bodies, which in other places he calls Fate. And this with great propriety; since every body is compelled to do whatever it does, and to suffer whatever it suffers; to heat or to be heated, to impart or to receive cold. But the elective power is unknown to a corporeal nature; so that the necessary and the nonelective may be said to be the peculiarities of bodies.

As there are two genera of things, therefore, the intelligible and the sensible, so likewise there are two kingdoms of these; that of Providence, upwards, which reigns over intelligibles and sensibles, and that of Fate downwards, which reigns over sensibles only. Providence likewise differs from Fate in the same manner as deity from that which is divine indeed, but participation, and not primarily. For in other things we see that which has a primary subsistence, and that which subsists according to participation. Thus the light which subsists in the orb of the sun is primary light, and that which is in the air, according to participation; the latter being derived from the former. And life is primarily in the soul, but secondarily in the body. Thus also, according to Plato, Providence is deity, but Fate is something divine, and not a god: for it depends upon Providence, of which it is as it were the image. As Providence too is to intelligibles, so is Fate to sensibles. And, alternately, as Providence is to Fate, so are intelligibles to sensibles. But intelligibles are the first of beings, and from these others derive their subsistence. And hence the order of Fate depends on the dominion of Providence.

In the second place, let us look to the rational nature itself, when correcting the inaccuracy of sensible information, as when it accuses the sight of deception, in seeing the orb of the sun as not larger than a foot in diameter; when it represses the ebullitions of anger, and exclaims with Ulysses,

"Endure my heart;"

or when it restrains the wanton tendencies of desire to corporeal delight. For in all such operations it manifestly subdues the irrational motions, both gnostic and appetitive, and absolves itself from them, as from things foreign to its nature. But it is necessary to investigate the essence of every thing, not from its perversion, but from its energies according to nature. If therefore reason, when it energizes in us as reason, restrains the shadowy impressions of the delights of licentious desire, punishes the precipitate motion of fury, and reproves the senses as full of deception, asserting that

"We nothing accurate, or see, or hear:"

and if it says this, looking to its internal reasons, none of which it knows through the body, or through corporeal cognitions, it is evident that, according to this energy, it removes itself far from the senses, contrary to the decision of which it becomes separated from those sorrows and delights.

After this, let us direct our attention to another and a better motion of our rational soul, when, during the tranquillity of the inferior parts, by a self-convertive energy, it sees its own essence, the powers which it contains, the harmonic reasons from which it consists, and the many lives of which it is the middle boundary, and thus finds itself to be a rational world, the image of the prior natures, from which it proceeds, but the paradigm of such as are posterior to itself. To this energy of the soul, theoretic arithmetic and geometry greatly contribute, for these remove it from the senses, purify the intellect from the irrational forms of life with which it is surrounded, and lead it to the incorporeal perception of ideas. For if these sciences receive the soul replete with images, and knowing nothing subtile and unattended with material garrulity; and if they elucidate reasons possessing an irrefragable necessity of demonstration, and forms full of all certainty and immateriality, and which by no means call to their aid the inaccuracy of sensibles, do they not evidently purify our intellectual life from things which fill us with a privation of intellect, and which impede our perception of true being?

After both these operations of the rational soul, let us now survey her highest intelligence, through which she sees her sister souls in the universe, who are allotted a residence in the heavens, and in the whole of a visible nature, according to the will of the fabricator of the world. But above all souls, she sees intellectual essences and orders. For a deiform intellect resides above every soul, and which also imparts to the soul an intellectual habit. Prior to these, however, she sees those divine monads, from which all intellectual multitudes receive their unions. For above all things united, there must necessarily be unific causes; above things vivified, vivifying causes; above intellectual natures, those that impart intellect; and above all participants, imparticipable natures. From all these elevating modes of intelligence, it must be obvious to such as are not perfectly blind, how the soul, leaving sense and body behind, surveys through the projecting energies of intellect those beings that are entirely exempt from all connection with a corporeal nature.

The rational and intellectual soul therefore, in whatever manner it may be moved according to nature, is beyond body and sense. And hence it must necessarily have an essence separate from both. But from this again, it becomes manifest, that when it energizes according to its nature, it is superior to Fate, and beyond the reach of its attractive power; but that, when falling into sense and things irrational and corporalized, it follows downward natures and lives, with them as with inebriated neighbors, then together with them it becomes subject to the dominion of Fate. For again, it is necessary that there should be an order of beings of such a kind, as to subsist according to essence above Fate, but to be sometimes ranked under it according to habitude. For if there are beings, and such are all intellectual natures which are eternally established above the laws of Fate, and also which, according to the whole of their life, are distributed under the periods of Fate, it is necessary that the medium between these should be that nature which is sometimes above, and sometimes under the dominion of Fate. For the procession of incorporeal natures is much more without a vacuum than that of bodies.

The free will therefore of man, according to Plato, is a rational elective, power, desiderative of true and apparent good, and leading the soul to both, through which it ascends and descends, errs and acts with rectitude. And hence the elective will be the same with that which characterizes our essence. According to this power, we differ from divine and mortal natures: for each of these is void of that two-fold inclination; the one on account of its excellence being alone established in true good; but the other in apparent good, on account of its defect. Intellect too characterizes the one, but sense the other; and the former, as Plotinus says, is our king, but the latter our messenger. We therefore are established in the elective power as a medium; and having the ability of tending both to true and apparent good, when we tend to the former we follow the guidance of intellect, when to the latter, that of sense. The power therefore which is in us is not capable of all things. For the power which is omnipotent is characterized by unity; and on this account is all-powerful, because it is one, and possesses the form of good. But the elective power is two-fold, and on this account is not able to effect all things; because, by it's inclinations to true and apparent good, it falls short of that nature which is prior to all things. It would however be all-powerful, if it had not an elective impulse, and was will alone. For a life subsisting according to will alone subsists according to good, because the will naturally tends to good, and such a life makes that which is characteristic in us most powerful and deiform. And hence through this the soul, according to Plato, becomes divine, and in another life, in conjunction with deity, governs the world. And thus much of the outlines of the leading dogmas of the philosophy of Plato.

In the beginning of this Introduction, I observed that, in drawing these outlines I should conduct the reader through novel and solitary paths, solitary indeed they must be, since they have been unfrequented from the reign of the emperor Justinian to the present time; and novel they will doubtless appear to readers of every description, and particularly to those who have been nursed as it were in the bosom of matter, the pupils of experiment, the darlings of sense, and the legitimate descendants of the earth-born race that warred on the Olympian gods. To such as these, who have gazed on the dark and deformed face of their nurse, till they are incapable of beholding the light of truth, and who are become so drowsy from drinking immoderately of the cup of oblivion, that their whole life is nothing more than a transmigration from sleep to sleep, and from dream to dream, like men passing from one bed to another,—to such as these, the road through which we have been traveling will appear to be a delusive passage, and the objects which we have surveyed to be nothing more than fantastic visions, seen only by the eye of imagination, and when seen, idle and vain as the dreams of a shadow.

The following arguments, however, may perhaps awaken some few of these who are less lethargic than the rest, from the sleep of sense, and enable them to elevate their mental eye from the dark mire in which they are plunged, and gain a glimpse of this most weighty truth, that there is another world, of which this is nothing more than a most obscure resemblance, and another life, of which this is but the flying mockery. My present discourse therefore is addressed to those who consider experiment as the only solid criterion of truth. In the first place then, these men appear to be ignorant of the invariable laws of demonstration properly so called, and that the necessary requisites of all demonstrative propositions are these: that they exist as causes, are primary, more excellent, peculiar, true, and known than the conclusions. For every demonstration not only consists of principles prior to others, but of such as are eminently first; since if the assumed propositions may be demonstrated by other assumptions, such propositions may indeed appear prior to the conclusions, but are by no means entitled to the appellation of first. Others, on the contrary, which require no demonstration, but are of themselves manifest, are deservedly esteemed the first, the truest, and the best. Such indemonstrable truths were called by the ancients axioms from their majesty and authority, as the assumptions which constitute demonstrative syllogisms derive all their force and efficacy from these.

In the next place, they seem not to be sufficiently aware, that universal is better than partial demonstration. For that demonstration is the more excellent which is derived from the better cause; but a universal is more extended and excellent than a partial cause; since the arduous investigation of the why in any subject is only stopped by the arrival at universals. Thus if we desire to know why the outward angles of a triangle are equal to four right angles, and it is answered, Because the triangle is isosceles; we again ask, but why Because isosceles? And if it be replied, Because it is a triangle; we may again inquire, But why because a triangle? To which we finally answer, because a triangle is a right-lined figure. And here our inquiry rests at that universal idea, which embraces every preceding particular one, and is contained in no other more general and comprehensive than itself. Add too, that the demonstration of particulars is almost the demonstration of infinites; of universals the demonstration of finites; and of infinites there can be no science. That demonstration likewise is the best which furnishes the mind with the most ample knowledge; and this is, alone, the province of universals. We may also add, that he who knows universals knows particulars likewise in capacity; but we can not infer that he who has the best knowledge of particulars, knows any thing of universals. And lastly, that which is universal is the object of intellect and reason; but particulars are coordinated to the perceptions of sense.

But here perhaps the experimentalist will say, admitting all this to be true, yet we no otherwise obtain a perception of these universals than by an induction of particulars, and abstraction from sensibles. To this, I answer that the universal which is the proper object of science, is not by any means the offspring of abstraction; and induction is no otherwise subservient to its existence than an exciting cause. For if scientific conclusions are indubitable, if the truth of demonstration is necessary and eternal, this universal is truly all, and not like that gained by abstraction, limited to a certain number of particulars. Thus, the proposition that the angles of every triangle are equal to two right, if it is indubitably true, that is, if the term every in it really includes all triangles, cannot be the result of any abstraction; for this, however extended it may be, is limited, and falls far short of universal comprehension. Whence is it then that the dianoetic power concludes thus confidently that the Proposition is true of all triangles? For if it be said that the mind, after having abstracted triangle from a certain number of particulars, adds from itself what is wanting to complete the all; in the first place, no man, I believe, will say that any such operation as this took place in his mind when he first learnt this proposition; and in the next place, if this should be granted, it would follow that such proposition is a mere fiction, since it is uncertain whether that which is added to complete the all is truly added; and thus the conclusion will no longer be indubitably necessary.

In short, if the words all and every, with which every page of theoretic mathematics is full, mean what they are conceived by all men to mean, and if the universals which they signify are the proper objects of science, such universals must subsist in the soul prior to the energies of sense. Hence it will follow that induction is no otherwise subservient to science, than as it produces credibility in axioms and petitions; and this by exciting the universal conception of these latent in the soul. The particulars, therefore, of which an induction is made in order to produce science, must be so simple, that they may be immediately apprehended, and that the universal may be predicated of them without hesitation. The particulars of the experimentalists are not of this kind, and therefore never can be sources of science truly so called.

Of this, however, the man of experiment appears to be totally ignorant, and in consequence of this, he is likewise ignorant that parts can only be truly known through wholes, and that this is particularly the case with parts when they belong to a whole, which, as we have already observed, from comprehending in itself the parts which it produces, is called a whole prior to parts. As he, therefore, would by no means merit the appellation of a physician who should attempt to cure any part of the human body, without a previous knowledge of the whole; so neither can he know any thing truly of the vegetable life of plants, who has not a previous knowledge of that vegetable life which subsists in the earth as a whole prior to, because the principle and cause of all partial vegetable life, and who still prior to this has not a knowledge of that greater whole of this kind which subsists in nature herself; nor, as Hippocrates justly observes, can he know any thing truly of the nature of the human body who is ignorant what nature is considered as a great comprehending whole. And if this be true, and it is so most indubitably, with all physiological inquiries, how much more must it be the case with respect to a knowledge of those incorporeal forms to which we ascended in the first part of this Introduction, and which in consequence of proceeding from wholes entirely exempt from body are participated by it, with much greater obscurity and imperfection? Here then is the great difference, and a mighty one it is, between the knowledge gained by the most elaborate experiments, and that acquired by scientific reasoning, founded on the spontaneous, unperverted, and self-luminous conceptions of the soul. The former does not even lead its votary up to that one nature of the earth from which the natures of all the animals and plants on its surface, and of all the minerals and metals in its interior parts, blossom as from a perennial root. The latter conducts its votary through all the several mundane wholes up to that great whole the world itself, and thence leads him through the luminous order of incorporeal wholes to that vast whole of wholes, in which all other wholes are centred and rooted, and which is no other than the principle of all principles, and the fountain of deity itself. No less remarkable likewise, is the difference between the tendencies of the two pursuits, for the one elevates the soul to the most luminous heights, and to that great ineffable which is beyond all altitude; but the other is the cause of a mighty calamity to the soul, since, according to the elegant expression of Plutarch, it extinguishes her principal and brightest eye, the knowledge of divinity. In short, the one leads to all that is grand, sublime and splendid in the universe; the other to all that is little, groveling[14] and dark. The one is the parent of the most pure and ardent piety; the genuine progeny of the other are impiety and atheism. And, in fine, the one confers on its votary the most sincere, permanent, and exalted delight; the other continual disappointment, and unceasing molestation.

————————- [14] That this must be the tendency of experiment, when prosecuted as the criterion of truth, is evident from what Bacon, the prince of modern philosophy, says in the 104th Aphorism of his Novum Organum, that "baseless fabric of a vision." For he there sagely observes that wings are not to be added to the human intellect, but rather lead and weights; that all its leaps and flights may be restrained. That this is not yet done, but that when it is we may entertain better hopes respecting the sciences. "Itaque hominum intellectui non plumae addendae, sed plumbum potius, et pondera; ut cohibeant omnem saltum et volatum. Atque hoc adhuc factum non est; quum vero factum fuerit, melius de scientiis sperare licebit." A considerable portion of lead must certainly have been added to the intellect of Bacon when he wrote this Aphorism. ————————-

If such then are the consequences, such the tendencies of experimental inquiries, when prosecuted as the criterion of truth, and daily experience[15] unhappily shows that they are, there can be no other remedy for this enormous evil than the intellectual philosophy of Plato. So obviously excellent indeed is the tendency of this philosophy, that its author, for a period of more than two thousand years, has been universally celebrated by the epithet of divine. Such too is its preeminence, that it may be shown, without much difficulty, that the greatest men of antiquity, from the time in which its salutary light first blessed the human race, have been more or less imbued with its sacred principles, have been more or less the votaries of its divine truths. Thus, to mention a few from among a countless multitude. In the catalogue of those endued with sovereign power, it had for its votaries Dion of Siracusian, Julian the Roman, and Chosroes the Persian, emperor; among the leaders of armies, it had Chabrias and Phocion, those brave generals of the Athenians; among mathematicians, those leading stars of science, Eudoxus, Archimedes[16] and Euclid; among biographers, the inimitable Plutarch; among physicians, the admirable Galen; among rhetoricians, those unrivaled orators Demosthenes and Cicero; among critics, that prince of philologists, Longinus; and among poets, the most learned and majestic Virgil. Instances, though not equally illustrious, yet approximating to these in splendour, may doubtless be adduced after the fall of the Roman empire; but then they have been formed on these great ancients as models, and are, consequently, only rivulets from Platonic streams. And instances of excellence in philosophic attainments, similar to those among the Greeks, might have been enumerated among the moderns, if the hand of barbaric despotism had not compelled philosophy to retire into the deepest solitude, by demolishing her schools, and involving the human intellect in Cimmerian darkness. In our own country, however, though no one appears to have wholly devoted himself to the study of this philosophy, and he who does not will never penetrate its depths, yet we have a few bright examples of no common proficiency in its more accessible parts.

————————- [15] I never yet knew a man who made experiment the test of truth, and I have known many such, that was not atheistically inclined.

[16] I have ranked Archimedes among the Platonists, because he cultivated the mathematical sciences Platonically, as is evident from the testimony of Plutarch in his Life of Marcellus, p. 307. For he there informs us that Archimedes considered the being busied about mechanics, and in short, every art which is connected with the common purposes of life, as ignoble and illiberal; and that those things alone were objects of his ambition with which the beautiful and the excellent were present, unmingled with the necessary. The great accuracy and elegance in the demonstrations of Euclid and Archimedes, which have not been equaled by any of our greatest modern mathematicians, were derived from a deep conviction of this important truth. On the other hand modern mathematicians, through a profound ignorance of this divine truth, and looking to nothing but the wants and conveniences of the animal life of man, as if the gratification of his senses was his only end, have corrupted pure geometry, by mingling with it algebraical calculations, and through eagerness to reduce it as much as possible to practical purposes, have more anxiously sought after conciseness than accuracy, facility than elegance of geometrical demonstration. ————————-

The instances I allude to are Shaftesbury, Akenside, Harris, Petwin, and Sydenham. So splendid is the specimen of philosophic abilities displayed by these writers, like the fair dawning of same unclouded morning, that we have only deeply to regret that the sun of their genius sat before we were gladdened with its effulgence. Had it shone with its full strength, the writer of this Introduction would not have attempted either to translate the works, or elucidate the doctrines of Plato; but though it rose with vigor, it dispersed not the clouds in which its light was gradually involved, and the eye in vain anxiously waited for it's meridian beam. In short, the principles of the philosophy of Plato are of all others the most friendly to true piety, pure morality, solid learning, and sound government. For as it is scientific in all its parts, and in these parts comprehends all that can be known by man in theology and ethics, and all that is necessary for him to know in physics, it must consequently contain in itself the source of all that is great and good both to individuals and communities, must necessarily exalt while it benefits, and deify while it exalts.

We have said that this philosophy at first shone forth through Plato with an occult and venerable splendor; and it is owing to the hidden manner in which it is delivered by him, that its depth was not fathomed till many ages after it's promulgation, and when fathomed, was treated by superficial readers with ridicule and contempt. Plato indeed, is not singular in delivering his philosophy occultly: for this was the custom of all the great ancients; a custom not originating from a wish to become tyrants in knowledge, and keep the multitude in ignorance, but from a profound conviction that the sublimest truths are profaned when clearly unfolded to the vulgar. This indeed must necessarily follow; since, as Socrates in Plato justly observes, "it is not lawful for the pure to be touched by the impure;" and the multitude are neither purified from the defilements of vice, nor the darkness of twofold ignorance. Hence, while they are thus doubly impure, it is as impossible for them to perceive the splendors of truth, as for an eye buried in mire to survey the light of day.

The depth of this philosophy then does not appear to have been perfectly penetrated except by the immediate disciples of Plato, for more than five hundred years after its first propagation. For though Crantor, Atticus, Albinus, Galen and Plutarch, were men of great genius, and made no common proficiency in Philosophic attainments, yet they appear not to have developed the profundity of Plato's conceptions; they withdrew not the veil which covers his secret meaning, like the curtains which guarded the adytum of temples from the profane eye; and they saw not that all behind the veil is luminous, and that there divine spectacles[17] every where present themselves to the view. This task was reserved for men who were born indeed in a baser age, but, who being allotted a nature similar to their leader, were the true interpreters of his mystic speculations. The most conspicuous of these are the great Plotinus, the most learned Porphyry, the divine Jamblichus, the most acute Syrianus, Proclus the consummation of philosophic excellence, the magnificent Hierocles, the concisely elegant Sallust, and the most inquisitive Damascius. By these men, who were truly links of the golden chain of deity, all that is sublime, all that is mystic in the doctrines of Plato (and they are replete with both these in a transcendent degree), was freed from its obscurity and unfolded into the most pleasing and admirable light. Their labors, however, have been ungratefully received. The beautiful light which they benevolently disclosed has hitherto unnoticed illumined philosophy in her desolate retreats, like a lamp shining on some venerable statue amidst dark and solitary ruins. The prediction of the master has been unhappily fulfilled in these his most excellent disciples. "For an attempt of this kind," says he,[18] "will only be beneficial to a few, who from small vestiges, previously demonstrated, are themselves able to discover these abstruse particulars. But with respect to the rest of mankind, some it will fill with a contempt by no means elegant, and others with a lofty and arrogant hope, that they shall now learn certain excellent things." Thus with respect to these admirable men, the last and the most legitimate of the followers of Plato, some from being entirely ignorant of the abstruse dogmas of Plato, and finding these interpreters full of conceptions which are by no means obvious to every one in the writings of that philosopher, have immediately concluded that such conceptions are mere jargon and revery, that they are not truly Platonic, and that they are nothing more than streams, which, though, originally derived from a pure fountain, have become polluted by distance from their source. Others, who pay attention to nothing but the most exquisite purity of language, look down with contempt upon every writer who lived after the fall of the Macedonian empire; as if dignity and weight of sentiment were inseparable from splendid and accurate diction; or as if it were impossible for elegant writers to exist in a degenerate age. So far is this from being the case, that though the style of Plotinus[19] and Jamblichus[20] is by no means to be compared with that of Plato, yet this inferiority is lost in the depth and sublimity of their conceptions, and is as little regarded by the intelligent reader, as motes in a sunbeam by the eye that gladly turns itself to the solar light.

——————— [17] See my Dissertation on the Mysteries.

[18]See the 7th Epistle of Plato.

[19] It would seem that those intemperate critics who have thought proper to revile Plotinus, the leader of the latter Platonists, have paid no attention to the testimony of Longinus concerning this most wonderful man, as preserved by Porphyry in his life of him. For Longinus there says, "that though he does not entirely accede to many of his hypotheses, yet he exceedingly admires and loves the form of his writing, the density of his conceptions, and the philosophic manner in which his questions are disposed." And in another place he says, "Plotinus, as it seems, has explained the Pythagoric and Platonic principles more clearly than those that were prior to him; for neither are the writings of Numenius, Cronius, Moderatus, and Thrasyllus, to be compared with those of Plotinus on this subject." After such a testimony as this from such a consummate critic as Longinus, the writings of Plotinus have nothing to fear from the imbecile censure of modern critics. I shall only further observe, that Longinus, in the above testimony, does not give the least hint of his having found any polluted streams, or corruption of the doctrines of Plato, in the works of Plotinus. There is not indeed the least vestige of his entertaining any such opinion in any part of what he has said about this most extraordinary man. This discovery was reserved for the more acute critic of modern times, who, by a happiness of conjecture unknown to the ancients, and the assistance of a good index, can in a few days penetrate the meaning of the profoundest writer of antiquity, and bid defiance even to the decision of Longinus.

[20] Of this most divine man, who is justly said by the emperor Julian to have been posterior indeed in time, but not in genius even to Plato himself, see the life which I have given in the History of the Restoration of the Platonic Theology, in the second vol. of my Proclus on Euclid. ———————————

As to the style of Porphyry, when we consider that he was the disciple of Longinus, whom Eunapius elegantly calls "a certain living library, and walking museum," it is but reasonable to suppose that he imbibed some portion of his master's excellence in writing. That he did so is abundantly evident from the testimony of Eunapius, who particularly commends his style for its clearness, purity, and grace. "Hence," he says, "Porphyry being let down to men like a mercurial chain, through his various erudition, unfolded every thing into perspicuity, and purity." And in another place he speaks of him as abounding with all the graces of diction, and as the only one that exhibited and proclaimed the praise of his master. With respect to the style of Proclus, it is pure, clear and elegant, like that of Dionysius Halicarnassus; but is much more copious and magnificent; that of Hierocles is venerable and majestic, and nearly equals the style of the greatest ancients; that of Sallust possesses an accuracy and a pregnant brevity, which cannot easily be distinguished from the composition of the Stagirite; and lastly, that of Damascius is clear and accurate, and highly worthy a most investigating mind.