Objection 1. It would seem that not all the members of the human body will rise again. For if the end be done away it is useless to repair the means. Now the end of each member is its act. Since then nothing useless is done in the Divine works, and since the use of certain members is not fitting to man after the resurrection, especially the use of the genital members, for then they "shall neither marry, nor be married" (Matthew 22:30), it would seem that not all the members shall rise again.
Objection 2. Further, the entrails are members: and yet they will not rise again. For they can neither rise full, since thus they contain impurities, nor empty, since nothing is empty in nature. Therefore the members shall not all rise again.
Objection 3. Further, the body shall rise again that it may be rewarded for the works which the soul did through it. Now the member of which a thief has been deprived for theft, and who has afterwards done penance and is saved, cannot be rewarded at the resurrection, neither for any good deed, since it has not co-operated in any, nor for evil deeds, since the punishment of the member would redound to the punishment of man. Therefore the members will not all rise again.
On the contrary, The other members belong more to the truth of human nature than hair and nails. Yet these will be restored to man at the resurrection according to the text (Sent. iv, D, 4). Much more therefore does this apply to the other members.
I answer that, As stated in De Anima ii, 4, "the soul stands in relation to the body not only as its form and end, but also as efficient cause." For the soul is compared to the body as art to the thing made by art, as the Philosopher says (De Anim. Gener. ii, 4), and whatever is shown forth explicitly in the product of art is all contained implicitly and originally in the art. In like manner whatever appears in the parts of the body is all contained originally and, in a way, implicitly in the soul. Thus just as the work of an art would not be perfect, if its product lacked any of the things contained in the art, so neither could man be perfect, unless the whole that is contained enfolded in the soul be outwardly unfolded in the body, nor would the body correspond in full proportion to the soul. Since then at the resurrection it behooves man's body to correspond entirely to the soul, for it will not rise again except according to the relation it bears to the rational soul, it follows that man also must rise again perfect, seeing that he is thereby repaired in order that he may obtain his ultimate perfection. Consequently all the members that are now in man's body must needs be restored at the resurrection.
Reply to Objection 1. The members may be considered in two ways in relation to the soul: either according to the relation of matter to form, or according to the relation of instrument to agent, since "the whole body is compared to the whole soul in the same way as one part is to another" (De Anima ii, 1). If then the members be considered in the light of the first relationship, their end is not operation, but rather the perfect being of the species, and this is also required after the resurrection: but if they be considered in the light of the second relationship, then their end is operation. And yet it does not follow that when the operation fails the instrument is useless, because an instrument serves not only to accomplish the operation of the agent, but also to show its virtue. Hence it will be necessary for the virtue of the soul's powers to be shown in their bodily instruments, even though they never proceed to action, so that the wisdom of God be thereby glorified.
Reply to Objection 2. The entrails will rise again in the body even as the other members: and they will be filled not with vile superfluities but with goodly humors.
Reply to Objection 3. The acts whereby we merit are not the acts, properly speaking, of hand or foot but of the whole man; even as the work of art is ascribed not to the instrument but to the craftsman. Therefore though the member which was cut off before a man's repentance did not co-operate with him in the state wherein he merits glory, yet man himself merits that the whole man may be rewarded, who with his whole being serves God.
Objection 1. It would seem that the hair and nails will not rise again in the human body. For just as hair and nails result from the surplus of food, so do urine, sweat and other superfluities or dregs. But these will not rise again with the body. Neither therefore will hair and nails.
Objection 2. Further, of all the superfluities that are produced from food, seed comes nearest to the truth of human nature, since though superfluous it is needed. Yet seed will not rise again in the human body. Much less therefore will hair and nails.
Objection 3. Further, nothing is perfected by a rational soul that is not perfected by a sensitive soul. But hair and nails are not perfected by a sensitive soul, for "we do not feel with them" (De Anima i, 5; iii, 13). Therefore since the human body rises not again except because it is perfected by a rational soul, it would seem that the hair and nails will not rise again.
On the contrary, It is written (Luke 21:18): "A hair of your head shall not perish."
Further, hair and nails were given to man as an ornament. Now the bodies of men, especially of the elect, ought to rise again with all their adornment. Therefore they ought to rise again with the hair.
I answer that, The soul is to the animated body, as art is to the work of art, and is to the parts of the body as art to its instruments: wherefore an animated body is called an organic body. Now art employs certain instruments for the accomplishment of the work intended, and these instruments belong to the primary intention of art: and it also uses other instruments for the safe-keeping of the principal instruments, and these belong to the secondary intention of art: thus the art of warfare employs a sword for fighting, and a sheath for the safe-keeping of the sword. And so among the parts of an animated body, some are directed to the accomplishment of the souls' operations, for instance the heart, liver, hand, foot; while others are directed to the safe-keeping of the other parts as leaves to cover fruit; and thus hair and nails are in man for the protection of other parts. Consequently, although they do not belong to the primary perfection of the human body, they belong to the secondary perfection: and since man will rise again with all the perfections of his nature, it follows that hair and nails will rise again in him.
Reply to Objection 1. Those superfluities are voided by nature, as being useful for nothing. Hence they do not belong to the perfection of the human body. It is not so with the superfluities which nature reserves for the production of hair and nails which she needs for the protection of the members.
Reply to Objection 3. Hair and nails are nourished and grow, and so it is clear that they share in some operation, which would not be possible unless they were parts in some way perfected by the soul. And since in man there is but one soul, namely the rational soul, it is clear that they are perfected by the rational soul, although not so far as to share in the operation of sense, as neither do bones, and yet it is certain that these will rise again and that they belong to the integrity of the individual.
Objection 1. It would seem that the humors will not rise again in the body. For it is written (1 Corinthians 15:50): "Flesh and blood cannot possess the kingdom of God." Now blood is the chief humor. Therefore it will not rise again in the blessed, who will possess the kingdom of God, and much less in others.
Objection 2. Further, humors are intended to make up for the waste. Now after the resurrection there will be no waste. Therefore the body will not rise again with humors.
Objection 3. Further, that which is in process of generation in the human body is not yet perfected by the rational soul. Now the humors are still in process of generation because they are potentially flesh and bone. Therefore they are not yet perfected by the rational soul. Now the human body is not directed to the resurrection except in so far as it is perfected by the rational soul. Therefore the humors will not rise again.
On the contrary, Whatever enters into the constitution of the human body will rise again with it. Now this applies to the humors, as appears from the statement of Augustine (De Spir. et Anima xv) that "the body consists of functional members; the functional members of homogeneous parts; and the homogeneous parts of humors." Therefore the humors will rise again in the body.
Further, our resurrection will be conformed to the resurrection of Christ. Now in Christ's resurrection His blood rose again, else the wine would not now be changed into His blood in the Sacrament of the altar. Therefore the blood will rise again in us also, and in like manner the other humors.
I answer that, Whatever belongs to the integrity of human nature in those who take part in the resurrection will rise again, as stated above (Articles 1 and 2). Hence whatever humidity of the body belongs to the integrity of human nature must needs rise again in man. Now there is a threefold humidity in man. There is one which occurs as receding from the perfection of the individual—either because it is on the way to corruption, and is voided by nature, for instance urine, sweat, matter, and so forth—or because it is directed by nature to the preservation of the species in some individual, either by the act of the generative power, as seed, or by the act of the nutritive power, as milk. None of these humidities will rise again, because they do not belong to the perfection of the person rising again.
The second kind of humidity is one that has not yet reached its ultimate perfection, which nature achieves in the individual, yet it is directed thereto by nature: and this is of two kinds. For there is one kind that has a definite form and is contained among the parts of the body, for instance the blood and the other humors which nature has directed to the members that are produced or nourished therefrom: and yet they have certain definite forms like the other parts of the body, and consequently will rise again with the other parts of the body: while another kind of humidity is in transition from form to form, namely from the form of humor to the form of member. Humidities of this kind will not rise again, because after the resurrection each part of the body will be established in its form, so that one will not pass into another. Wherefore this humidity that is actually in transition from one form to another will not rise again. Now this humidity may be considered in a twofold state—either as being at the beginning of its transformation, and thus it is called "ros," namely the humidity that is found in the cavities of the smaller veins—or as in the course of transformation and already beginning to undergo alteration, and thus it is called "cambium": but in neither state will it rise again. The third kind of humidity is that which has already reached its ultimate perfection that nature intends in the body of the individual, and has already undergone transformation and become incorporate with the members. This is called "gluten," and since it belongs to the members it will rise again just as the members will.
Reply to Objection 1. In these words of the Apostle flesh and blood do not denote the substance of flesh and blood but deeds of flesh and blood, which are either deeds of sin or the operations of the animal life. Or we may say with Augustine in his letter to Consentius (Ep. cxlvi) that "flesh and blood here signify the corruption which is now predominant in flesh and blood"; wherefore the Apostle's words continue: "Neither shall corruption possess incorruption."
Reply to Objection 2. Just as the members that serve for generation will be after the resurrection for the integrity of human nature, and not for the operation accomplished now by them, so will the humors be in the body not to make up for waste, but to restore the integrity of human nature and to show forth its natural power.
Reply to Objection 3. Just as the elements are in the course of generation in relation to mixed bodies, because they are their matter, yet not so as to be always in transition when in the mixed body, so too are the humors in relation to the members. And for this reason as the elements in the parts of the universe have definite forms, by reason of which they, like mixed bodies, belong to the perfection of the universe, so too the humors belong to the perfection of the human body, just as the other parts do, although they do not reach its entire perfection, as the other parts do, and although the elements have not perfect forms as mixed bodies have. But as all the parts of the universe receive their perfection from God, not equally, but each one according to its mode, so too the humors are in some way perfected by the rational soul, yet not in the same measure as the more perfect parts.
Objection 1. It would seem that what was in the body, belonging to the truth of human nature, will not all rise again in it. For food is changed into the truth of human nature. Now sometimes the flesh of the ox or of other animals is taken as food. Therefore if whatever belonged to the truth of human nature will rise again, the flesh of the ox or of other animals will also rise again: which is inadmissible.
Objection 2. Further, Adam's rib belonged to the truth of human nature in him, as ours does in us. But Adam's rib will rise again not in Adam but in Eve, else Eve would not rise again at all since she was made from that rib. Therefore whatever belonged in man to the truth of human nature will not all rise again in him.
Objection 3. Further, it is impossible for the same thing from different men to rise again. Yet it is possible for something in different men to belong to the truth of human nature, for instance if a man were to partake of human flesh which would be changed into his substance. Therefore there will not rise again in man whatever belonged in him to the truth of human nature.
Objection 4. Further, if it be said that not all the flesh partaken of belongs to the truth of human nature and that consequently some of it may possibly rise again in the one man and some in the other—on the contrary: That which is derived from one's parents would especially seem to belong to the truth of human nature. But if one who partook of nothing but human flesh were to beget children that which his child derives from him must needs be of the flesh of other men partaken of by his father, since the seed is from the surplus of food, as the Philosopher proves (De Gen. Animal. i). Therefore what belongs to the truth of human nature in that child belonged also to the truth of human nature in other men of whose flesh his father had partaken.
Objection 5. Further, if it be said that what was changed into seed was not that which belong to the truth of human nature in the flesh of the men eaten, but something not belonging to the truth of human nature—on the contrary: Let us suppose that some one is fed entirely on embryos in which seemingly there is nothing but what belongs to the truth of human nature since whatever is in them is derived from the parents. If then the surplus food be changed into seed, that which belonged to the truth of human nature in the embryos—and after these have received a rational soul, the resurrection applies to them—must needs belong to the truth of human nature in the child begotten of that seed. And thus, since the same cannot rise again in two subjects, it will be impossible for whatever belonged to the truth of human nature in both to rise again in both of them.
On the contrary, Whatever belonged to the truth of human nature was perfected by the rational soul. Now it is through being perfected by the rational soul that the human body is directed to the resurrection. Therefore whatever belonged to the truth of human nature will rise again in each one.
Further, if anything belonging to the truth of human nature in a man be taken from his body, this will not be the perfect body of a man. Now all imperfection of a man will be removed at the resurrection, especially in the elect, to whom it was promised (Luke 21:18) that not a hair of their head should perish. Therefore whatever belonged to the truth of human nature in a man will rise again in him.
I answer that, "Everything is related to truth in the same way as to being" (Metaph. ii), because a thing is true when it is as it appears to him who actually knows it. For this reason Avicenna (Metaph. ii) says that "the truth of anything is a property of the being immutably attached thereto." Accordingly a thing is said to belong to the truth of human nature, because it belongs properly to the being of human nature, and this is what shares the form of human nature, just as true gold is what has the true form of gold whence gold derives its proper being. In order therefore to see what it is that belongs to the truth of human nature, we must observe that there have been three opinions on the question. For some have maintained that nothing begins anew to belong to the truth of human nature and that whatever belongs to the truth of human nature, all of it belonged to the truth of human nature when this was created; and that this multiplies by itself, so that it is possible for the seed whereof the child is begotten to be detached therefrom by the begetter, and that again the detached part multiplies in the child, so that he reaches perfect quantity by growth, and so on, and that thus was the whole human race multiplied. Wherefore according to this opinion, whatever is produced by nourishment. although it seem to have the appearance of flesh and blood, does not belong to the truth of human nature.
Others held that something new is added to the truth of human nature by the natural transformation of the food into the human body, if we consider the truth of human nature in the species to the preservation of which the act of the generative power is directed: but that if we consider the truth of human nature in the individual, to the preservation and perfection of which the act of the nutritive power is directed, that which is added by food belongs to the truth of the human nature of the individual, not primarily but secondarily. For they assert that the truth of human nature, first and foremost, consists in the radical humor, that namely which is begotten of the seed of which the human race was originally fashioned: and that what is changed from food into true flesh and blood does not belong principally to the truth of human nature in this particular individual, but secondarily: and that nevertheless this can belong principally to the truth of human nature in another individual who is begotten of the seed of the former. For they assert that seed is the surplus from food, either mingled with something belonging principally to the truth of human nature in the begetter, according to some, or without any such admixture, as others maintain. And thus the nutrimental humor in one becomes the radical humor in another.
The third opinion is that something new begins to belong principally to the truth of human nature even in this individual, because distinction in the human body does not require that any signate material part must needs remain throughout the whole lifetime; any signate part one may take is indifferent to this, whereas it remains always as regards what belongs to the species in it, albeit as regards what is material therein it may ebb and flow. And thus the nutrimental humor is not distinct from the radical on the part of its principle (so that it be called radical when begotten of the seed, and nutrimental when produced by the food), but rather on the part of the term, so that it be called radical when it reaches the term of generation by the act of the generative, or even nutritive power, but nutrimental, when it has not yet reached this term, but is still on the way to give nourishment.
These three opinions have been more fully exposed and examined in the Second Book (Sent. ii, D, 30); wherefore there is no need for repetition here, except in so far as the question at issue is concerned. It must accordingly be observed that this question requires different answers according to these opinions.
For the first opinion on account of its explanation of the process of multiplication is able to admit perfection of the truth of human nature, both as regards the number of individuals and as regards the due quantity of each individual, without taking into account that which is produced from food; for this is not added except for the purpose of resisting the destruction that might result from the action of natural heat, as lead is added to silver lest it be destroyed in melting. Wherefore since at the resurrection it behooves human nature to be restored to its perfection, nor does the natural heat tend to destroy the natural humor, there will be no need for anything resulting from food to rise again in man, but that alone will rise again which belonged to the truth of the human nature of the individual, and this reaches the aforesaid perfection in number and quantity by being detached and multiplied.
The second opinion, since it maintains that what is produced from food is needed for the perfection of quantity in the individual and for the multiplication that results from generation, must needs admit that something of this product from food shall rise again: not all, however, but only so much as is required for the perfect restoration of human nature in all its individuals. Hence this opinion asserts that all that was in the substance of the seed will rise again in this man who was begotten of this seed; because this belongs chiefly to the truth of human nature in him: while of that which afterwards he derives from nourishment, only so much will rise again in him as is needed for the perfection of his quantity; and not all, because this does not belong to the perfection of human nature, except in so far as nature requires it for the perfection of quantity. Since however this nutrimental humor is subject to ebb and flow the restoration will be effected in this order, that what first belonged to the substance of a man's body, will all be restored, and of that which was added secondly, thirdly, and so on, as much as is required to restore quantity. This is proved by two reasons. First, because that which was added was intended to restore what was wasted at first, and thus it does not belong principally to the truth of human nature to the same extent as that which came first. Secondly, because the addition of extraneous humor to the first radical humors results in the whole mixture not sharing the truth of the specific nature as perfectly as the first did: and the Philosopher instances as an example (De Gener. i) the mixing of water with wine, which always weakens the strength of the wine, so that in the end the wine becomes watery: so that although the second water be drawn into the species of wine, it does not share the species of wine as perfectly as the first water added to the wine. Even so that which is secondly changed from food into flesh does not so perfectly attain to the species of flesh as that which was changed first, and consequently does not belong in the same degree to the truth of human nature nor to the resurrection. Accordingly it is clear that this opinion maintains that the whole of what belongs to the truth of human nature principally will rise again, but not the whole of what belongs to the truth of human nature secondarily.
The third opinion differs somewhat from the second and in some respects agrees with it. It differs in that it maintains that whatever is under the form of flesh and bone all belongs to the truth of human nature, because this opinion does not distinguish as remaining in man during his whole lifetime any signate matter that belongs essentially and primarily to the truth of human nature, besides something ebbing and flowing, that belongs. to the truth of human nature merely on account of the perfection of quantity, and not on account of the primary being of the species, as the second opinion asserted. But it states that all the parts that are not beside the intention of the nature generated belong to the truth of human nature, as regards what they have of the species, since thus they remain; but not as regards what they have of matter, since thus they are indifferent to ebb and flow: so that we are to understand that the same thing happens in the parts of one man as in the whole population of a city, for each individual is cut off from the population by death, while others take their place: wherefore the parts of the people flow back and forth materially, but remain formally, since these others occupy the very same offices and positions from which the former were withdrawn, so that the commonwealth is said to remain the selfsame. In like manner, while certain parts are on the ebb and others are being restored to the same shape and position, all the parts flow back and forth as to their matter, but remain as to their species; and nevertheless the selfsame man remains.
On the other hand, The third opinion agrees with the second, because it holds that the parts which come secondly do not reach the perfection of the species so perfectly as those which come first: and consequently the third opinion asserts that the same thing rises again in man as the second opinion maintains, but not for quite the same reason. For it holds that the whole of what is produced from the seed will rise again, not because it belongs to the truth of human nature otherwise than that which comes after, but because it shares the truth of human nature more perfectly: which same order the second opinion applied to those things that are produced afterwards from food, in which point also these two opinions agree.
Reply to Objection 1. A natural thing is what it is, not from its matter but from its form; wherefore, although that part of matter which at one time was under the form of bovine flesh rises again in man under the form of human flesh, it does not follow that the flesh of an ox rises again, but the flesh of a man: else one might conclude that the clay from which Adam's body was fashioned shall rise again. The second opinion, however, grants this argument.
Reply to Objection 2. That rib did not belong to the perfection of the individual in Adam, but was directed to the multiplication of the species. Hence it will rise again not in Adam but in Eve, just as the seed will rise again, not in the begetter, but in the begotten.
Reply to Objection 3. According to the first opinion it is easy to reply to this argument, because the flesh that is eaten never belonged to the truth of human nature in the eater, but it did belong to the truth of human nature in him whose flesh was eaten: and thus it will rise again in the latter but not in the former. according to the second and third opinions, each one will rise again in that wherein he approached nearest to the perfect participation of the virtue of the species, and if he approached equally in both, he will rise again in that wherein he was first, because in that he first was directed to the resurrection by union with the rational soul of that man. Hence if there were any surplus in the flesh eaten, not belonging to the truth of human nature in the first man, it will be possible for it to rise again in the second: otherwise what belonged to the resurrection in the first will rise again in him and not in the second; but in the second its place is taken either by something of that which was the product from other food, or if he never partook of any other food than human flesh, the substitution is made by Divine power so far as the perfection of quantity requires, as it does in those who die before the perfect age. Nor does this derogate from numerical identity, as neither does the ebb and flow of parts.
Reply to Objection 4. According to the first opinion this argument is easily answered. For that opinion asserts that the seed is not from the surplus food: so that the flesh eaten is not changed into the seed whereof the child is begotten. But according to the other two opinions we must reply that it is impossible for the whole of the flesh eaten to be changed into seed, because it is after much separation that the seed is distilled from the food, since seed is the ultimate surplus of food. That part of the eaten flesh which is changed into seed belongs to the truth of human nature in the one born of the seed more than in the one of whose flesh the seed was the product. Hence according to the rule already laid down (Reply to Objection 3), whatever was changed into the seed will rise again in the person born of the seed; while the remaining matter will rise again in him of whose flesh the seed was the product.
Reply to Objection 5. The embryo is not concerned with the resurrection before it is animated by a rational soul, in which state much has been added to the seminal substance from the substance of food, since the child is nourished in the mother's womb. Consequently on the supposition that a man partook of such food, and that some one were begotten of the surplus thereof, that which was in the seminal substance will indeed rise again in the one begotten of that seed; unless it contain something that would have belonged to the seminal substance in those from whose flesh being eaten the seed was produced, for this would rise again in the first but not in the second. The remainder of the eaten flesh, not being changed into seed, will clearly rise again in the first the Divine power supplying deficiencies in both. The first opinion is not troubled by this objection, since it does not hold the seed to be from the surplus food: but there are many other reasons against it as may be seen in the Second Book (Sent. ii, D, 30; I, 119, 2).
Objection 1. It would seem that whatever was materially in a man's members will all rise again. For the hair, seemingly, is less concerned in the resurrection than the other members. Yet whatever was in the hair will all rise again, if not in the hair, at least in other parts of the body, as Augustine says (De Civ. Dei xxii) quoted in the text (Sent. iv, D, 44). Much more therefore whatever was materially in the other members will all rise again.
Objection 2. Further, just as the parts of the flesh are perfected as to species by the rational soul, so are the parts as to matter. But the human body is directed to the resurrection through being perfected by a rational soul. Therefore not only the parts of species but also the parts of matter will all rise again.
Objection 3. Further, the body derives its totality from the same cause as it derives its divisibility into parts. But division into parts belongs to a body in respect of matter the disposition of which is quantity in respect of which it is divided. Therefore totality is ascribed to the body in respect of its parts of matter. If then all the parts of matter rise not again, neither will the whole body rise again: which is inadmissible.
On the contrary, The parts of matter are not permanent in the body but ebb and flow, as stated in De Gener. i. If, therefore, all the parts of matter, which remain not but ebb and flow, rise again, either the body of one who rises again will be very dense, or it will be immoderate in quantity.
Further, whatever belongs to the truth of human nature in one man can all be a part of matter in another man, if the latter were to partake of his flesh. Therefore if all the parts of matter in one man were to rise again it follows that in one man there will rise again that which belongs to the truth of human nature in another: which is absurd.
I answer that, What is in man materially, is not directed to the resurrection, except in so far as it belongs to the truth of human nature; because it is in this respect that it bears a relation to the human souls. Now all that is in man materially belongs indeed to the truth of human nature in so far as it has something of the species, but not all, if we consider the totality of matter; because all the matter that was in a man from the beginning of his life to the end would surpass the quantity due to his species, as the third opinion states, which opinion seems to me more probable than the others. Wherefore the whole of what is in man will rise again, if we speak of the totality of the species which is dependent on quantity, shape, position and order of parts, but the whole will not rise again if we speak of the totality of matter. The second and first opinions, however, do not make this distinction, but distinguish between parts both of which have the species and matter. But these two opinions agree in that they both state what is produced from the seed will all rise again even if we speak of totality of matter: while they differ in this that the first opinion maintains that nothing will rise again of that which was engendered from food, whereas the second holds that something but not all, thereof will rise again, as stated above (Article 4).
Reply to Objection 1. Just as all that is in the other parts of the body will rise again, if we speak of the totality of the species, but not if we speak of material totality, so is it with the hair. In the other parts something accrues from nourishment which causes growth, and this is reckoned as another part, if we speak of totality of species, since it occupies another place and position in the body, and is under other parts of dimension: and there accrues something which does not cause growth, but serves to make up for waste by nourishing. and this is not reckoned as another part of the whole considered in relation to the species, since it does not occupy another place or position in the body than that which was occupied by the part that has passed away: although it may be reckoned another part if we consider the totality of matter. The same applies to the hair. Augustine, however, is speaking of the cutting of hair that was a part causing growth of the body; wherefore it must needs rise again, not however as regards the quantity of hair, lest it should be immoderate, but it will rise again in other parts as deemed expedient by Divine providence. Or else he refers to the case when something will be lacking to the other parts, for then it will be possible for this to be supplied from the surplus of hair.
Reply to Objection 2. According to the third opinion parts of species are the same as parts of matter: for the Philosopher does not make this distinction (De Gener. i) in order to distinguish different parts, but in order to show that the same parts may be considered both in respect of species, as to what belongs to the form and species in them, and in respect of matter, as to that which is under the form and species. Now it is clear that the matter of the flesh has no relation to the rational soul except in so far as it is under such a form, and consequently by reason thereof it is directed to the resurrection. But the first and second opinions which draw a distinction between parts of species and parts of matter say that although the rational soul perfects both parts, it does not perfect parts of matter except by means of the parts of species, wherefore they are not equally directed to the resurrection.
Reply to Objection 3. In the matter of things subject to generation and corruption it is necessary to presuppose indefinite dimensions before the reception of the substantial form. Consequently division which is made according to these dimensions belongs properly to matter. But complete and definite quantity comes to matter after the substantial form; wherefore division that is made in reference to definite quantity regards the species especially when definite position of parts belongs to the essence of the species, as in the human body.
The Summa Theologiæ of St. Thomas Aquinas
Second and Revised Edition, 1920
Literally translated by Fathers of the English Dominican Province
Online Edition Copyright © 2017 by Kevin Knight
Nihil Obstat. F. Innocentius Apap, O.P., S.T.M., Censor. Theol.
Imprimatur. Edus. Canonicus Surmont, Vicarius Generalis. Westmonasterii.
Nihil Obstat. F. Raphael Moss, O.P., S.T.L. and F. Leo Moore, O.P., S.T.L.
Imprimatur. F. Beda Jarrett, O.P., S.T.L., A.M., Prior Provincialis Angliæ
MARIÆ IMMACULATÆ - SEDI SAPIENTIÆ