Simone Porzio (†1554): An Aristotelian between Nature and Grace

Paul Grendler reviews a recent monograph from a work by Eva del Soldato on Simone ImagePorzio (Simon Portius in Latin) that sheds a bit more light on this important Renaissance philosopher. Portius was infamous in the 16th century for denying, along with his teacher Pietro Pomponazzi, that one may prove the immortality of the soul by rational demonstration. Needless to say there was little tolerance for this view in the rest of Europe at that time where his conclusion that reason cannot prove the immortality of the soul was seen as the equivalent of denying the immortality of the soul outright. Soldato, Grendler tells us, explains that Porzio’s philosophy was a bit more complicated than that:

Born in Naples, Porzio studied with Agostino Nifo and obtained doctorates of arts and medicine in 1520 and theology in 1522 at the University of Pisa. He taught at the University of Pisa until 1525, then natural philosophy at the University of Naples from 1529 to 1545, natural philosophy at the University of Pisa from 1545 to 1553, after which returned to Naples and died in 1554. In his second Pisan period he enjoyed the favor of Duke Cosimo I and participated in the activities of the Accademia Fiorentina, where he associated with Giambattista Gelli, who translated some of his works into Italian.

It is true that Porzio was a strict Aristotelian who argued strongly that the soul was mortal. But in other works, including lectures available only in manuscript, he addressed different topics and offered a wider range of views. In treatises on love and Petrarch’s poetry Porzio saw love in Aristotelian terms as unrestrained passion and a form of living death in which man loses reason. He concluded that the solution was faith in Christ, and the gift of faith depends on grace. In several short works based on Aristotle’s zoological works Porzio demonstrated his philological skill and knowledge of the ancient Greek commentators on Aristotle. He argued that the pseudo-Aristotelian work De coloribus was written by the ancient Theophrastus. In a treatise on pain he argued that pain came from the dispositions of soul and body rather than sense experience.

Porzio exhibited a strong fideistic tendency in several short works that dealt with ethical-theological concerns. In a short treatise on celibacy, Porzio wrote that although marriage is the solution for concupiscence, it was different for a priest, who was higher than a common man. Porzio showed the influence of Desiderius Erasmus and, possibly, evangelical views coming from Juan de Valdés, in treatises on prayer and the Our Father. In his Pisan lectures on Aristotle’s De anima Porzio expressed doubt about purgatory, for which there was no scriptural support, and Lenten fasting.

~ Paul F. Grendler, “Un aristotelico tra natura e grazia (review),” The Catholic Historical Review 98:2 (April 2012).


The Afterlife: A Potential Problem in Aquinas’s Psychology

Thomas Aquinas’s attempted solution to the problem of substance dualism (i.e., the mind/body connection) involved his use of Aristotelian language to define the intellectual soul as the “form” of the body. Yet, in order to account for the separated state of the soul after death Thomas was forced to stretch Aristotle’s concept of “formal substance” to explain the Christian teaching on the soul’s disembodied afterlife. He maintains that the soul is the intellectual form of the body but is also per se subsistens (existing on its own) and that the agent intellect does not make use of any bodily organ in the act of intellection. Krista Hyde, in a master’s thesis submitted to the University of Missouri at Saint Louis, makes note of Aquinas’s attempt to connect the mind and body in one substantial form but also points out the metaphysical problem that this causes:

In this way, Aquinas reframes the mind-body connection and escapes the interaction problem, but this opens him up to another, potentially fatal, flaw. The weakness of his argument is that it is not clear how such a soul could separate from the body and survive its death, despite his protestations that this act of the body is also substantial. Aquinas maintains that the human soul is an abstract form and a concrete particular thing. He has accounted for the soul as the form of the body. It is intuitive, however, that such forms would have to be Platonic (that is, an incorporeal, abstract idea, having the highest level of reality and to which humans have access only through the world of perception and sensation) if they can be said to depart from the body and remain in existence with some function until the time of the resurrection and judgment, as required by Christian doctrine. Aquinas, of course, would never accept his philosophy as Platonic, especially on this account, because he insists that matter is for the edification of the soul. Plato maintains that the soul simply “uses” matter, but that matter is unnecessary.

If the soul is a state, it must be one that can exist apart from that which bears it. Though the concept of the free radical is helpful as an illustration of the soul as form, it fails to exemplify this aspect; the free radical is not immaterial. The soul as organizing force of the body may be fatal to Aquinas’s psychology. If the soul is seen as a sort of genetic code or as software to the body’s hardware, however, it may be possible to imagine its survival in an immaterial state, to be employed (later, during the afterlife) in organizing prime matter once more.

A counter-objection might suggest that the soul survives between death and resurrection, but is “activated” again upon the resurrection. It does not seem likely that Aquinas would be willing to accept that the soul is totally incapacitated until Judgment, since he insists that the soul retains its proper operations: will, intellectual memory, and understanding.

~ Hyde, Thomas Aquinas: Soul-Body Connection and the Afterlife, pp. 29-30.)

An interesting note to add to this is that many of Aquinas’s followers did move in a more Platonic direction after his death. Fast-forward to the 15th century and one can see with Marsilio Ficino a student of Aquinas’s thought who turns to the original sources of the Platonic tradition to explain this very problem. He argues that the soul uses various vehicles (pace Proclus) and thus maintains its formal functionality even when separated from the body. Ficino’s solution is no less problematic, however, (it does not fully explain the necessity of the soul’s embodiment) and begs the question of whether the immortality of the soul can be proven philosophically without at the same time directly appealing to such doctrines as the hypostatic union of Christ’s natures as found in the Chalcedonean definition. Whether Hyde’s proposed solution with regard to the soul as “software” or “genetic code” of the body is helpful is, of course, up to the reader to decide.

Ficino vs. Vincenzo on Man’s Ultimate End: Intellect or Will?

Vincenzo Bandello's letter to Lorenzo de' Medici
Vincenzo Bandello’s treatise addressed to Lorenzo de’ Medici

In the mid-1960s the late Renaissance scholar Paul Oskar Kristeller uncovered a manuscript by the Dominican Vicar General Vincenzo Bandello (†1507) addressed to Lorenzo de’ Medici concerning the teaching of Lorenzo’s close confidant, the famous Renaissance Platonist Marsilio Ficino (†1499) on the subject of human beatitude – the full title of the text is, Opusculum fratris Vincentii de Castro Novo Ordinis Predicatorum ad magnificum ac generosum virum Laurentium Medicem quod beatitudo hominis in actu intellectus et non voluntatis essentialiter consistit. This text is interesting for various reasons but primarily that it provides an example of the contrast between Late Medieval and Renaissance philosophy, specifically with respect to the debate between Thomists and Scotists over whether man’s ultimate end consists in an act of the intellect or of the will and how the terms of this debate changed during the Renaissance.  The title betrays the fact that according to Fra Vincenzo, the ultimate end of man consist essentially in an act of the intellect and not an act of the will. Though Vincenzo and Ficino are indebted to Thomas Aquinas’s philosophical synthesis in crucial aspects, both however, sought to justify their positions with reference to the classical sources, Vincenzo to Aristotle, Ficino to Plato. Kristeller explains in more detail:

For both of them, the ultimate happiness of man consists in a conjunction of the soul with God that is permanently attained, on the part of the blessed, in the future life. Both of them also take it for granted that the intellect and will are involved in the attainment of this ultimate happiness which includes the vision and fruition of God on the part of the soul and presupposes the love and desire of the soul for its ultimate end […] [One] basic difference [between the two] concerns the theory of pleasure. Fra Vincenzo stands firm on the Aristotelian theory presented in the last book of the Nicomachean Ethics that pleasure is the accompanying perfection of an activity, and hence should not be coonsidered as a primary good or end of desire. Ficino, on the other hand, was at one time deeply influenced by the hedonism of Epicurus and Lucretius, and actually refers in his letter to his early treatise De voluptate, in which his views on this subject are developed. Moreover, he was influenced by the Neoplatonic view that the good, and the appetite directed towards it, have both a higher and broader metaphysical significance than the order of truth and intellect. [For Ficino] the intellect grasps its object through images or species … and when its object is God, the intellect lowers and narrows it to conform with its own capacity. Love, on the other hand, moves the soul towards its object as it is in itself, and when this object is God, love will lift and enlarge the soul to the infinity of God. Fra Vincenzo’s reply to this important argument is characteristic: the distinction between the acts of the will and of the intellect as given by Ficino is true for the present life. In the future life, the knowledge of God will be aided by the lumen gloriae, the soul will know God immediately in His essence, and thus be enlarged to His infinity through the vision of God, rather than through fruition.

(Kristeller, Studies in Renaissance Thought and Letters, vol. 3, 154-155)

Kristeller notes also that Ficino does not place such a radical division between the present and the future life as does Vincenzo. Rather, the present is a “genuine foretaste of the future life” and so the metaphysical pleasure or enjoyment of God that one enjoys in the present corresponds in a fundamental way to that of the future life. This would recall to any Presbyterian ears the words of the first question of the Shorter Catechism of the Westminster Confession, that the “chief end” of man is to “glorify God, and enjoy him forever.” Vincenzo rejects dilectio and fruitio as forming an essential (essentialiter) part of human beatitude because, as Aristotle argues, this sort of desire aims at a particular good for the sake of pleasure and not for its own sake. According to Tamara Albertini this division between desire (or pleasure, enjoyment, or love – Vincenzo refutes all of them as essential to beatitude) and ultimate beatitude – and the way of dividing the intellect from the will so that one contributes more to beatitude than the other – was considered by Ficino, at least in his later years, to be a false dichotomy (see Albertini, “Intellect and Will in Marsilio Ficino: Two Correlatives of a Renaissance Concept of Mind” in Marsilio Ficino: His Theology, His Philosophy, His Legacy).

Though Kristeller published some of the Latin text of Vincenzo’s treatise, he was only able to transcribe about half of it. For those who may be interested, the Biblioteca Medicea Laurenziana of Florence still has the original copy and has digitized it – click here to read it. The treatise is appended to Vincenzo’s interesting refutation of the doctrine of the “immaculate conception.” The Quod beatitudo… begins on Carta 157r.

Mario Equicola (†1525) on Gender Difference

Titian, Garden of Love (1518), commissioned by duke Alfonso d'Este under collaboration with Mario Equicola
Titian, Garden of Love (1518), commissioned by duke Alfonso d’Este in collaboration with Mario Equicola

Mario Equicola, the famous Renaissance poet, produced one of the comparatively few treatises on women (De Mulieribus) during the Renaissance. Equicola addresses his treatise to the Lady Margherita Cantelmo, who was one of his students and, according to Carolyn James, was being tutored by Equicola even from afar by means of his letters. After demonstrating from both scripture and authorities such as Hermes Tristmegistus and Cicero that the image of God in man is not differentiated in its essence between genders, Equicola invokes the authority of Plato and Aristotle to defend his main argument that the physiological and intellectual differences between men and women are due to poor educational custom and not nature. One traditional hermeneutic that was mined by Renaissance humanists from the texts of the Neoplatonic authors was the attempt to harmonize the apparent dichotomous philosophies of Plato and Aristotle for the sake of defending what they perceived to be the unique truth of perennial philosophical wisdom. Equicola praises both of these philosophers even though the latter wrote little to nothing on the current subject. He writes:

(English translation below)

Divinitatis a secretis semideus Plato in libris quos de republica scripsit in gymnica mulieres certamina deducere non veretur, et iactu lapidum, arcu, funda, luctatione exerceri iubet. In legibus quas ipse vehementer probavit (cum respublica voventis sit atque optantis, illae eligentis) eadem quae masculis eadem feminis exercitia tribuit, legem sanciens ut mulieres rem bellicam non negligant, gymnasticam discant, iaculandi sagiptandi exercitationes, peltasticen, quoque, et omnes armatorum dimicationes; acierum ordinationes, ductiones exercitus, castrorum positiones, et quaecumque ad equestrem pertinent disciplinam. Tales certe non tulisset leges nisi feminas – neque corporis valentia et robore, neque animae excellentia et nobilitate – viris inferiores cognovisset, et ad omnia habiles aptasque ex philosophiae penetralibus percepisset: consuetudineque feminis res forenses et bellicae, non natura, prohibitae.

Aristoteles, cum aliqua iisdem in legisbus et republica non probet, illam de mulieribus sanctionem praeterit, quod homo ingeniosissimus mortalium et gloriae ante alios cupidissimus non utique omisisset nisi sic esse habuisset optime exploratum: naturale enim cognorat, quod maxime natura fieri patitur.

~ Mario Equicola, De Mulieribus Delle Donne, edited by Giuseppe Lucchesini and Pina Totaro, (Rome: Istituti Editoriali e Poligrafici Internazionali, 2004), p. 34.


Plato (the semi-divine) writes in the Republic, by means of a secret divinity, that women are not afraid to launch a competition and he decrees that they are to be trained in throwing stones, in the bow, the sling, and in wrestling. In laws that he has vehemently proven (since the republic is characterized by laws voted on, wished for, and elected) Plato assigns the same rule for the training of both men and women, a rule sanctioning that women not neglect the military art, that they learn gymnastics, and [receive] training in throwing and shooting arrows (also with the pelta), and all the arts of combat: the arrangement of a battle line, the leading of an army, the positioning of encampments and everything that pertains to the equestrian discipline. He would have certainly not proposed such laws if he thought that women are inferior to men (either in power and strength of body or in the excellence or nobility of their souls), and he perceived (from the inner shrine of philosophy) that [women] are capable and well-suited for every activity and that courtly and military duties are prohibited for women because of custom and not because of nature.

Since Aristotle did not approve of some of Plato’s [arguments] in the Laws and the Republic, he did not make mention of any law concerning women. This man – who was the most talented of mortals and was more desirous of glory than others – would certainly not have omitted [this topic] unless he would have held that [Plato’s conclusions] were most optimally investigated, for he naturally recognized what the highest nature brings into being.

The hermeneutic employed here implies that if Aristotle omitted anything that Plato treated then the latter must have agreed (though Equicola allows for some non-essential disagreement) with his teacher. Yet, a more idealistic or Platonic account of gender difference would seem to work against Equicola’s argument that women are capable of education in the liberal arts despite their gender difference.

Later in his argument Equicola appears to depend more on Aristotle when he argues that the human mind is a tabula rasa and that women have no innate weakness or daftness but may perform well in all of the so-called “masculine” arts with the proper education. He argues, “It was rightly said that custom is a second nature [alteram naturam] – as neither conditions nor habits, vices nor virtues come into being by fortune or fate but by choice and practice [arbitrio et exercitatione] – since we are as a blank canvas [tabula rasa] on which anything can be painted.” As many Renaissance humanists, however, Equicola appears to see no essential difference Platonic and Aristotelian epistemology; he affirms, “Nature has given us an imperfect intellect but which is capable of being perfected. It has also given us the seeds of all the arts and the little sparks of the virtues [virtutum scintillas], but so great is the corruption of bad customs and of such great force that these little flames of the virtues [virtutum igniculi] are extinguished and vices spring forth and are strengthened [in their place].” For Equicola, one’s natural capacities for acquiring the various virtues are innate “little sparks” that are either strengthened or doused by education. Using these principles Equicola is able to argue that the two genders are not different in essence but, nevertheless, have certain bodily differences for the sake of procreation.

Johannes Tauler (†1361), the Image of God, and the ‘Dominican’ Proclus

For those interested in the recovery of Neoplatonic texts in Late Medieval Europe and/or the Protestant Reformation, TaulerJohannes Tauler should be quite interesting. He was a Dominican student of Meister Eckhart and his works were quite influential for Martin Luther. Tauler’s concept of the imago Dei was one of the most unique of his time. In a sermon on John 3:11 Tauler explicitly distances himself from Thomas Aquinas’s concept of the imago. For Tauler the Seelengrund (ground of the soul) is the true image of the Trinity as opposed to the traditional Augustinian concept of the imago as reflected in memory, understanding, and will. One may only enter their Seelengrund, says Tauler, by shedding “all outward attachments” and “pious action” since, in one’s return to the hidden God “exterior precepts and techniques will be of no avail.” Tauler’s doctrine of the Seelengrund is unique because it is partly influenced by his readings of a quite recently translated passage from Proclus’s De Providentia. Tauler explains:

(English translation below)

Hievon sprach ein heidenscher meister Proculus: alle die wile und also lange da der mensche mit den bilden die under uns sint, umbget und mangeld do nút, so ist daz nut gelouplich daz der mensche in disen grunt iemer komen múge; das ist uns zümole ein ungloube daz das in uns si; wir múgent nút gelouben das es si und ouch in uns si, sunder – sprach er – wiltu daz bevinden das ez si, so la alle manigvaltekeit und sich dis an mit eime verstentlichen gesihte dis ein; wiltu nu noch hoher kummen, so la das vernúnftige gesihte und daz ansehen, wan die vernunft ist under dir unde wurt eins mit dem einen, und er nemmet dis eine alsus: eine stille swigende sloffende götteliche unsinnige dúnsternisse. Kinder, das ein heiden dis verstunt und darzü kam, das wir dem also verre und also ungelich sint, das ist uns laster und grosse schande. Dis bezúgete unser herre do er sprach: ‘das rich Gottes ist in úch’…

A pagan master, Proclus, has this to say on the subject [of the imago Dei]: “As long as man is occupied with images inferior to himself, and as long as he does not go beyond them, it is unlikely that he will ever reach this depth. It will appear an illusion to really believe that this groung exists within us; we doubt that it can actually exist in us. Therefore,” he continues, “if you wish to experience its existence, you must abandon all multiplicity and concentrate your attention on this one thing with the eyes of your intellect; and if you wish to rise higher, you must put aside all rational methods, for reason is now beneath you, and then you may become united with the One.” And he calls this state a divine darkness: still, silent, at rest , and above all sense perception. Beloved, it is a disgraceful thing that a pagan philosopher understood and attained this truth, while we are so far from both. Our Lord expressed the same truth when he said: “The kingdom of God is within us.” – Tauler, translated by Maria Shrady in Johannes Tauler: Sermons, The Classics of Western Spirituality, (Paulist Press, 1985), 105.

According to Loris Sturlese, Tauler does not merely quote Proclus as an authority but implies that he understands the context and some of the more intricate details of Proclus’s philosophy. Judging the content of Tauler’s few references to Proclus, Sturlese determines that he must have had full access to three whole chapters of Proclus’s De Providentia (from where the references originate) within the Tria Opuscula translated by William of Moerbeke ca. 1268. Sturlese explains the full extent of the influences on Tauler’s concept of the Seelengrund:

(English translation below)

Tauler lehnt die thomistische These ab, die Gottebenbildlichkeit der Seele bestehe in der aktuallen Entfaltung ihrer Seelenvermögen (Gedächtnis, Verstand und Wille), und betont, das Bild Gottes liege vielmehr »in dem allerverborgensten tieffesten grunde der selen«, wobei er sich ausdrücklich auf Proklos … und stillschweigend auf Dietrich und Berthold beruft […]. Die Lehre Dietrichs, die er für sich in Anspruch nimmt, ist seine bekannte Identifizierung des Bildes Gottes mit dem »abditus mentis« Augustins […]. Die Lehre des Proklos ist die des »unum animae«, in noch ausführlicherer Weise im Rahmen der Erklärung des Begriffes vom Gemüt … dargestellt wird […]. Tauler macht sich das Proklische »unum animae« zunutze, um der Interpretation des »abditum mentis« im Sinne des Intellekts, die Dietrich von Freiberg – einem Motiv Alberts des Großen folgend – vorgetragen hatte (Tauler kennt sie…), die Deutung des »abditum mentis« als transintellektuelles Prinzip gegenüberzustellen […]. Hierbei zeigt sich Tauler als vom philosophischen Denken Bertholds von Moosburg abhängig, denn er interpretiert die Proklischen Texte zum »unum« in einer Weise, die bei Berthold, und nur bei ihm, eine genaue Entsprechung findet… Unter dem Gesichtspunkt der damaligen deutschen philosophischen Debatte betrachtet, ist Taulers Übereinstimmung mit Berthold als eine Stellungnahme gegen den Thomismus anzusehen, welche die in der Dominikanerprovinz verbreitete Stimmung reflektierte, die ihre markanteste Erscheinung im Prokloskommentar des Moosburger Lektors fand… – Loris Sturlese, Homo Divinus: Philosophische Projekte in Deutschland zwischen Meister Eckhart und Heinrich Seuse, (Kohlhammer GmbH: Stuttgart, 2007), 194, 195).

Tauler rejected the thomistic position, that the image of God in the soul consists in the actual development of its faculties (memory, understanding, and will), and stresses , that the image of God lies, rather, “in the completely hidden, deepest ground of the soul,” whereby he makes explicit reference to Proclus … and by implication to Dietrich [von Freiberg] and Berthold [von Moosburg] […] Dietrich’s theory, which [Tauler] claimed for himself, is his well-known identification of the image of God with the “abditus mentis” [the hidden depth of the mind] of Augustine. Proclus’s theory is that of the “unum animae” [the one in the soul], depicted in a yet more detailed way in the context of the representation of ideas from the mind. Tauler made use of Proclus’s doctrine of the “unum animae” in order to counterpose the interpretation of the “abditum mentis” as properly intellectual – and Tauler knew that Dietrich von Freiberg followed the motive of Albert the Great in handing down this concept – with the reading of the “abditus mentis” as a trans-intellectual principle. By this Tauler shows that he is dependent upon the philosophical thought of Berthold von Moosburg, because he interpreted the text of Proclus regarding the “one” in such a way that one finds an exact equivalent [of it] in Berthold’s work and only in his work. When viewed from the perspective of the German philosophical debate of the time, Tauler’s agreement with Berthold is seen as a reaction against Thomism, which reflected a common attitude in the Dominican Order and which found its most marked appearance in the Proclus-commentary of the Moosburg lecturers.

Tauler was a fellow Dominican and resided in the same cloister as Berthold von Moosburg, the first in the European West to read and comment upon a major work of Proclus’s, i.e., the Elements of Theology – Aquinas commented on a portion of the Liber de Causis which contains selections from Proclus’s Elements translated from Arabic. So, Sturlese argues, it is most likely the case that Tauler received excerpts from Proclus’s De Providentia from his Dominican brother. Combining this new teaching of the “one in the soul” with the mysticism of Albertus Magnus mediated by Dietrich’s earlier teaching (which Eckhart also incorporated into his theology) on Augustine’s abditus mentis, Tauler was able to construct a theology of the imago Dei that challenged the hegemony of the Dominican magisterium. Tauler’s theology also functioned as an apologetic for what he saw as humanity’s absolute need of the divine mediation of Christ to enable one to lose oneself and return to the One within the Seelengrund, which, as he says, is the “Kingdom of God within us.”

The Optimism of a Dualistic Reality in Later Neoplatonism

ImageAs Radek Chlup argues in his recent monograph on Proclus, later Neoplatonists such as Iamblichus and Proclus seem at first glance to present a more pessimistic account of the soul’s abilities than that of Plotinus who thought of the “higher soul” as freely able to navigate between different levels of ontological reality. For Plotinus the higher soul remains in the intellectual realm while the lower soul descends into the body. Thus, the material aspect of human existence is merely a hindrance to perfection and contemplative virtue is promoted as the only means of “escaping from here.” For Iamblichus and Proclus there is no higher undescended soul and the intelligible universe does not exist within the soul. Chlup explains that, although this divergence from the teaching of the original “father” of Neoplatonism may seem pessimistic, things are not as they may seem on the surface:

At first sight, the Neoplatonic approach [of later Neoplatonists] may appear rather pessimistic. While Plotinus had the entire universe at his fee, so to speak, and was able to pass through its various levels freely, starting with Iamblichus philosophers were ‘imprisoned’ on the psychic level, having no access to the higher ones. In fact, however, their position implies no pessimism whatsoever, and in some regards it is actually optimistic. Above all, eastern Neoplatonists have a much more positive relation towards the corporeal world. Plotinus’ identification with his ‘higher self’ established in the intelligible world caused our philosopher to show little concern for what goes on at the corporeal level. It is symptomatic that Plotinus has a very negative conception of matter, regarding it as the ultimate source of all evil. Late Neoplatonists cannot afford such a view or the simple reason that they have nowhere to escape from bodily reality. According to them, humans are mediators between the intelligible and the sensible world, and they have no choice but to take seriously both of them … A soul of this kind … should combine its contemplative activity with active providential care for things in this world. – Chlup, Proclus: An Introduction, (Oxford: 2012), 28, 29.

Thus, these later Neoplatonists, though they held a more pessimistic view of the soul, actually were more optimistic about the “hylemorphê” or the united body-soul composite that is the essence of a human. This also reflects a more optimistic metaphysics with regard the gods and their relation to the material world. According to Proclus:

[The soul] wants to imitate the providential care of the gods; it is for this reason that it abandons its contemplation. For divine perfection is of two kinds: one is intellective, the other providential; the former consists in rest, the latter in motion. This being so, the soul imitates the intellective and unswerving stability of the gods by its contemplation, but their providence and motion by its life in the world of  generation. – In Tim. III 324.6-12; Chlup, 245.

And, of course, Proclus’s more optimistic view of the hylemorphê and of the gods corresponds to a more civic oriented virtue ethic. Since human reality is ultimately a dualistic unity of mind and matter and because man desires to imitate the providential actions of the gods, so his contemplation will always return to bodily action, from which one might say it never truly departed. Proclus explains:

Moreover, since virtue is not one and indivisible but multifarious, we must understand that providence always incites us to ever different projections of our reason-principles, in order that the virtuous person might realize all possible modes of virtue and be shown as its true champion in the eyes of those who have arranged the contest of virtue [i.e., the gods]. For this reason providence often brings externally active people to rest, making the intellect within them revert on itself, but it moves to actions those who only look inside themselves; in this way it teaches us what form virtue has and that it is of two aspects. This is why providence gives us various tools but then takes back again what it has given: by making human lives variegated it challenges good people to actualize their dispositions in all possible manners, training them in this way to administer this universe together with the gods. – De dec. dub. 37.9-20; Chlup, 249.

The Originality of Aquinas’s Epistemology

In question 84 of the prima pars, Thomas Aquinas attempts to reconcile his adoption of Aristotle’s epistemology contra Plato’s theory of innate intelligible species with his allegiance to the traditional Augustinian doctrine of divine illumination. His answer to this question was quite novel in its time, and considering the influence of his philosophy on successive generations, quite revolutionary. Robert Pasnau relates a bit of the substance of and the historical reaction to Aquinas’s particular theory of illumination:

Many of Aquinas’s early adversaries noticed only the negative aspect of Aquinas’s claims about divine illumination. Roger Marston (c. 1235-1303) spoke of those who, “drunk on the nectar of philosophy … twisted toward their own sense all of Augustine’s authoritative texts on the unchanging light and eternal rules” (De anima 3 ad 30 (p. 273)). Viewed only in the light of [Summa Theologiae I] 84.5, it is not clear why there should have been such hostility. The view that Aquinas here rejects is one that was universally rejected at the time: no one held that human beings in this life have the divine ideas as an object of cognition. Moreover, everyone agreed that divine illumination is not sufficient on its own, without the senses. Still, Aquinas would be controversial because he understands divine illumination to have occurred at the time when the soul was created. Others, in contrast, would argue for special illumination, an ongoing influence from above, constantly required for the intellect’s operation. From one perspective this introduces an important difference between Aquinas and his opponents. According to Henry of Ghent, for example

“It should be said unconditionally, therefore, that there is nothing a human being can have pure truth about by acquiring knowledge of it through purely natural means. Such truth can be had only through the divine light’s illumination” (Summa I.2 [f.8rM]).

Aquinas in contrast, is able to hold that

“Just as other natural active capacities, when connected to their passive counterparts suffice for their natural operations, so also the soul, which has within itself an active and a passive capacity, suffices for the perception of the truth” (InDT I.Ic).

It is not that Aquinas denies God’s influence, merely that he thinks this influence does its part at the outset, furnishing human beings with a sufficient capacity for thought on their own, without the need for any “new illumination added onto their natural illumination” (Ia2ae 109.Ic). It is this step toward naturalism that Aquinas’s opponents would find so objectionable. Thus Marston decries his opponents for holding that “we see all things in the first truth because we see in a light derived from that truth – namely, in the natural light of our mind, which is part of the soul” (De anima 3 resp. (pp. 252-53). (Pasnau, Thomas Aquinas on Human Nature, 305).

Pasnau notes that Aquinas’s epistemology is motivated by his goal to provide a justification for sense knowledge as an essential aspect of the hylomorphic nature of humanity. For Aquinas, the Platonists (those whom he knew primarily through Macrobius) had not sufficiently done this. For them the body does not aid but provides an obstacle to the intellect that must be removed. Rather, the active intellect depends upon the senses for its reception of phantasms which it uses in its crafting of intelligible species within the passive intellect. Nonetheless, this crafting is done by an innate power which “comes to the soul from the separated substances and especially from God as from its first source” (De Veritate., 10.6).