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 Obj. 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 Obj. 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 Obj. 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 John 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.
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EIGHTH ARTICLE [III, Q. 77, Art. 8]

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.

Obj. 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 liqui