But the senses witness to the untruth of what some maintain; viz. that the species do not nourish as though they were changed into the human body, but merely refresh and hearten by acting upon the senses (as a man is heartened by the odor of meat, and intoxicated by the fumes of wine). Because such refreshment does not suffice long for a man, whose body needs repair owing to constant waste: and yet a man could be supported for long if he were to take hosts and consecrated wine in great quantity.
In like manner the statement advanced by others cannot stand, who hold that the sacramental species nourish owing to the remaining substantial form of the bread and wine: both because the form does not remain, as stated above (Q[75], A[6]): and because to nourish is the act not of a form but rather of matter, which takes the form of the one nourished, while the form of the nourishment passes away: hence it is said in De Anima ii that nourishment is at first unlike, but at the end is like.
Reply to Objection 1: After the consecration bread can be said to be in this sacrament in two ways. First, as to the species, which retain the name of the previous substance, as Gregory says in an Easter Homily (Lanfranc, De Corp. et Sang. Dom. xx). Secondly, Christ's very body can be called bread, since it is the mystical bread "coming down from heaven." Consequently, Ambrose uses the word "bread" in this second meaning, when he says that "this bread does not pass into the body," because, to wit, Christ's body is not changed into man's body, but nourishes his soul. But he is not speaking of bread taken in the first acceptation.
Reply to Objection 2: Although the sacramental species are not those things out of which the human body is made, yet they are changed into those things stated above.
Reply to Objection 3: Although the sacramental species are not a substance, still they have the virtue of a substance, as stated above.
Whether the sacramental species are broken in this sacrament?
Objection 1: It seems that the sacramental species are not broken in this sacrament, because the Philosopher says in Meteor. iv that bodies are breakable owing to a certain disposition of the pores; a thing which cannot be attributed to the sacramental species. Therefore the sacramental species cannot be broken.
Objection 2: Further, breaking is followed by sound. But the sacramental species emit no sound: because the Philosopher says (De Anima ii), that what emits sound is a hard body, having a smooth surface. Therefore the sacramental species are not broken.
Objection 3: Further, breaking and mastication are seemingly of the same object. But it is Christ's true body that is eaten, according to Jn. 6:57 : "He that eateth My flesh, and drinketh My blood." Therefore it is Christ's body that is broken and masticated: and hence it is said in the confession of Berengarius: "I agree with the Holy Catholic Church, and with heart and lips I profess, that the bread and wine which are placed on the altar, are the true body and blood of Christ after consecration, and are truly handled and broken by the priest's hands, broken and crushed by the teeth of believers." Consequently, the breaking ought not to be ascribed to the sacramental species.
On the contrary, Breaking arises from the division of that which has quantity. But nothing having quantity except the sacramental species is broken here, because neither Christ's body is broken, as being incorruptible, nor is the substance of the bread, because it no longer remains. Therefore the sacramental species are broken.
I answer that, Many opinions prevailed of old on this matter. Some held that in this sacrament there was no breaking at all in reality, but merely in the eyes of the beholders. But this contention cannot stand, because in this sacrament of truth the sense is not deceived with regard to its proper object of judgment, and one of these objects is breaking, whereby from one thing arise many: and these are common sensibles, as is stated in De Anima ii.
Others accordingly have said that there was indeed a genuine breaking, but without any subject. But this again contradicts our senses; because a quantitative body is seen in this sacrament, which formerly was one, and is now divided into many, and this must be the subject of the breaking.
But it cannot be said that Christ's true body is broken. First of all, because it is incorruptible and impassible: secondly, because it is entire under every part, as was shown above (Q[76], A[3]), which is contrary to the nature of a thing broken.
It remains, then, that the breaking is in the dimensive quantity of the bread, as in a subject, just as the other accidents. And as the sacramental species are the sacrament of Christ's true body, so is the breaking of these species the sacrament of our Lord's Passion, which was in Christ's true body.
Reply to Objection 1: As rarity and density remain under the sacramental species, as stated above (A[2], ad 3), so likewise porousness remains, and in consequence breakableness.
Reply to Objection 2: Hardness results from density; therefore, as density remains under the sacramental species, hardness remains there too, and the capability of sound as a consequence.
Reply to Objection 3: What is eaten under its own species, is also broken and masticated under its own species; but Christ's body is eaten not under its proper, but under the sacramental species. Hence in explaining Jn. 6:64 , "The flesh profiteth nothing," Augustine (Tract. xxvii in Joan.) says that this is to be taken as referring to those who understood carnally: "for they understood the flesh, thus, as it is divided piecemeal, in a dead body, or as sold in the shambles." Consequently, Christ's very body is not broken, except according to its sacramental species. And the confession made by Berengarius is to be understood in this sense, that the breaking and the crushing with the teeth is to be referred to the sacramental species, under which the body of Christ truly is.
Whether any liquid can be mingled with the consecrated wine?
Objection 1: It seems that no liquid can be mingled with the consecrated wine, because everything mingled with another partakes of its quality. But no liquid can share in the quality of the sacramental species, because those accidents are without a subject, as stated above (A[1]). Therefore it seems that no liquid can be mingled with the sacramental species of the wine.
Objection 2: Further, if any kind of liquid be mixed with those species, then some one thing must be the result. But no one thing can result from the liquid, which is a substance, and the sacramental species, which are accidents; nor from the liquid and Christ's blood, which owing to its incorruptibility suffers neither increase nor decrease. Therefore no liquid can be mixed with the consecrated wine.
Objection 3: Further, if any liquid be mixed with the consecrated wine, then that also would appear to be consecrated; just as water added to holy-water becomes holy. But the consecrated wine is truly Christ's blood. Therefore the liquid added would likewise be Christ's blood otherwise than by consecration, which is unbecoming. Therefore no liquid can be mingled with the consecrated wine.
Objection 4: Further, if one of two things be entirely corrupted, there is no mixture (De Gener. i). But if we mix any liquid, it seems that the entire species of the sacramental wine is corrupted, so that the blood of Christ ceases to be beneath it; both because great and little are difference of quantity, and alter it, as white and black cause a difference of color; and because the liquid mixed, as having no obstacle, seems to permeate the whole, and so Christ's blood ceases to be there, since it is not there with any other substance. Consequently, no liquid can be mixed with the consecrated wine.
On the contrary, It is evident to our senses that another liquid can be mixed with the wine after it is consecrated, just as before.
I answer that, The truth of this question is evident from what has been said already. For it was said above (A[3]; A[5], ad 2) that the species remaining in this sacrament, as they acquire the manner of being of substance in virtue of the consecration, so likewise do they obtain the mode of acting and of being acted upon, so that they can do or receive whatever their substance could do or receive, were it there present. But it is evident that if the substance of wine were there present, then some other liquid could be mingled with it.
Nevertheless there would be a different effect of such mixing both according to the form and according to the quantity of the liquid. For if sufficient liquid were mixed so as to spread itself all through the wine, then the whole would be a mixed substance. Now what is made up of things mixed is neither of them, but each passes into a third resulting from both: hence it would result that the former wine would remain no longer. But if the liquid added were of another species, for instance, if water were mixed, the species of the wine would be dissolved, and there would be a liquid of another species. But if liquid of the same species were added, of instance, wine with wine, the same species would remain, but the wine would not be the same numerically, as the diversity of the accidents shows: for instance, if one wine were white and the other red.