SUMMA THEOLOGICA. Thomas Aquinas
that intellect which deliberates in order to find out what should be done, which is like movement. Such is the human intellect, but not the divine intellect ( Question [14], Articles [7],12).
Reply to Objection 4: Those who hold the eternity of the world hold that some region was changed an infinite number of times, from being uninhabitable to being inhabitable and "vice versa," and likewise they hold that the arts, by reason of various corruptions and accidents, were subject to an infinite variety of advance and decay. Hence Aristotle says (Meteor. i), that it is absurd from such particular changes to hold the opinion of the newness of the whole world.
Reply to Objection 5: Even supposing that the world always was, it would not be equal to God in eternity, as Boethius says (De Consol. v, 6); because the divine Being is all being simultaneously without succession; but with the world it is otherwise.
Reply to Objection 6: Passage is always understood as being from term to term. Whatever bygone day we choose, from it to the present day there is a finite number of days which can be passed through. The objection is founded on the idea that, given two extremes, there is an infinite number of mean terms.
Reply to Objection 7: In efficient causes it is impossible to proceed to infinity "per se"---thus, there cannot be an infinite number of causes that are "per se" required for a certain effect; for instance, that a stone be moved by a stick, the stick by the hand, and so on to infinity. But it is not impossible to proceed to infinity "accidentally" as regards efficient causes; for instance, if all the causes thus infinitely multiplied should have the order of only one cause, their multiplication being accidental, as an artificer acts by means of many hammers accidentally, because one after the other may be broken. It is accidental, therefore, that one particular hammer acts after the action of another; and likewise it is accidental to this particular man as generator to be generated by another man; for he generates as a man, and not as the son of another man. For all men generating hold one grade in efficient causes---viz. the grade of a particular generator. Hence it is not impossible for a man to be generated by man to infinity; but such a thing would be impossible if the generation of this man depended upon this man, and on an elementary body, and on the sun, and so on to infinity.
Reply to Objection 8: Those who hold the eternity of the world evade this reason in many ways. For some do not think it impossible for there to be an actual infinity of souls, as appears from the Metaphysics of Algazel, who says that such a thing is an accidental infinity. But this was disproved above ( Question [7], Article [4]). Some say that the soul is corrupted with the body. And some say that of all souls only one will remain. But others, as Augustine says [*Serm. xiv, De Temp. 4,5; De Haeres., haeres. 46; De Civ. Dei xii. 13], asserted on this account a circuit of souls---viz. that souls separated from their bodies return again thither after a course of time; a fuller consideration of which matters will be given later ( Question [75], Article [2]; Question [118], Article [6]). But be it noted that this argument considers only a particular case. Hence one might say that the world was eternal, or least some creature, as an angel, but not man. But we are considering the question in general, as to whether any creature can exist from eternity.
Whether the creation of things was in the beginning of time?
Objection 1: It would seem that the creation of things was not in the beginning of time. For whatever is not in time, is not of any part of time. But the creation of things was not in time; for by the creation the substance of things was brought into being; and time does not measure the substance of things, and especially of incorporeal things. Therefore creation was not in the beginning of time.
Objection 2: Further, the Philosopher proves (Phys. vi, text 40) that everything which is made, was being made; and so to be made implies a "before" and "after." But in the beginning of time, since it is indivisible, there is no "before" and "after." Therefore, since to be created is a kind of "being made," it appears that things were not created in the beginning of time.
Objection 3: Further, even time itself is created. But time cannot be created in the beginning of time, since time is divisible, and the beginning of time is indivisible. Therefore, the creation of things was not in the beginning of time.
On the contrary, It is said (Gn. 1:1): "In the beginning God created heaven and earth."
I answer that, The words of Genesis, "In the beginning God created heaven and earth," are expounded in a threefold sense in order to exclude three errors. For some said that the world always was, and that time had no beginning; and to exclude this the words "In the beginning" are expounded---viz. "of time." And some said that there are two principles of creation, one of good things and the other of evil things, against which "In the beginning" is expounded---"in the Son." For as the efficient principle is appropriated to the Father by reason of power, so the exemplar principle is appropriated to the Son by reason of wisdom, in order that, as it is said (Ps. 103:24), "Thou hast made all things in wisdom," it may be understood that God made all things in the beginning---that is, in the Son; according to the word of the Apostle (Col. 1:16), "In Him"---viz. the Son---"were created all things." But others said that corporeal things were created by God through the medium of spiritual creation; and to exclude this it is expounded thus: "In the beginning"---i.e. before all things---"God created heaven and earth." For four things are stated to be created together---viz. the empyrean heaven, corporeal matter, by which is meant the earth, time, and the angelic nature.
Reply to Objection 1: Things are said to be created in the beginning of time, not as if the beginning of time were a measure of creation, but because together with time heaven and earth were created.
Reply to Objection 2: This saying of the Philosopher is understood "of being made" by means of movement, or as the term of movement. Because, since in every movement there is "before" and "after," before any one point in a given movement---that is, whilst anything is in the process of being moved and made, there is a "before" and also an "after," because what is in the beginning of movement or in its term is not in "being moved." But creation is neither movement nor the term of movement, as was said above ( Question [45], Articles [2],3). Hence a thing is created in such a way that it was not being created before.
Reply to Objection 3: Nothing is made except as it exists. But nothing exists of time except "now." Hence time cannot be made except according to some "now"; not because in the first "now" is time, but because from it time begins.
TREATISE ON THE DISTINCTION OF THINGS IN GENERAL (Question [47])
OF THE DISTINCTION OF THINGS IN GENERAL (THREE ARTICLES)
After considering the production of creatures, we come to the consideration of the distinction of things. This consideration will be threefold---first, of the distinction of things in general; secondly, of the distinction of good and evil; thirdly, of the distinction of the spiritual and corporeal creature.
Under the first head, there are three points of inquiry: