Commentary on Aristotle's Metaphysics

 PROLOGUE

 BOOK I

 LESSON 1

 LESSON 2

 LESSON 3

 LESSON 4

 LESSON 5

 LESSON 6

 LESSON 7

 LESSON 8

 LESSON 9

 LESSON 10

 LESSON 11

 LESSON 12

 LESSON 13

 LESSON 14

 LESSON 15

 LESSON 16

 LESSON 17

 BOOK II

 LESSON 1

 LESSON 2

 LESSON 3

 LESSON 4

 LESSON 5

 BOOK III

 LESSON 1

 LESSON 2

 LESSON 3

 LESSON 4

 LESSON 5

 LESSON 6

 LESSON 7

 LESSON 8

 LESSON 9

 LESSON 10

 LESSON 11

 LESSON 12

 LESSON 13

 LESSON 14

 LESSON 15

 BOOK IV

 LESSON 1

 LESSON 2

 LESSON 3

 LESSON 4

 LESSON 5

 LESSON 6

 LESSON 7

 LESSON 8

 LESSON 9

 LESSON 10

 LESSON 11

 LESSON 12

 LESSON 13

 LESSON 14

 LESSON 15

 LESSON 16

 LESSON 17

 BOOK V

 LESSON 1

 LESSON 2

 LESSON 3

 LESSON 4

 LESSON 5

 LESSON 6

 LESSON 7

 LESSON 8

 LESSON 9

 LESSON 10

 LESSON 11

 LESSON 12

 LESSON 13

 LESSON 14

 LESSON 15

 LESSON 16

 LESSON 17

 LESSON 18

 LESSON 19

 LESSON 20

 LESSON 21

 LESSON 22

 BOOK VI

 LESSON 1

 LESSON 2

 LESSON 3

 LESSON 4

 LESSON 1

 LESSON 2

 LESSON 3

 LESSON 4

 LESSON 5

 LESSON 6

 LESSON 7

 LESSON 8

 LESSON 9

 LESSON 10

 LESSON 11

 LESSON 12

 LESSON 13

 LESSON 14

 LESSON 15

 LESSON 16

 LESSON 17

 BOOK VIII

 LESSON 1

 LESSON 2

 LESSON 3

 LESSON 4

 LESSON 5

 LESSON 1

 LESSON 2

 LESSON 3

 LESSON 4

 LESSON 5

 LESSON 6

 LESSON 7

 LESSON 8

 LESSON 9

 LESSON 10

 LESSON 11

 BOOK X

 LESSON 1

 LESSON 2

 LESSON 3

 LESSON 4

 LESSON 5

 LESSON 6

 LESSON 7

 LESSON 8

 LESSON 9

 LESSON 10

 LESSON 11

 LESSON 12

 Book XI

 LESSON 1

 LESSON 2

 LESSON 3

 LESSON 4

 LESSON 5

 LESSON 6

 LESSON 7

 LESSON 8

 LESSON 9

 LESSON 10

 LESSON 11

 LESSON 12

 LESSON 13

 BOOK XII

 LESSON 1

 LESSON 2

 LESSON 3

 LESSON 4

 LESSON 5

 LESSON 6

 LESSON 7

 LESSON 8

 LESSON 9

 LESSON 10

 LESSON 11

 LESSON 12

 Footnotes

LESSON 4

The True and the False as Being and Non-Being. Accidental Being

and Being in the Sense of the True Are Excluded from This Science

  Chapter 4: 1027b 17-1028a 6

             556. Again, being in the sense of the true and non-being in the sense of the false [are not to be considered] since such being depends on combination and separation, and these taken together form both parts of a contradiction. For truth resides in the affirmation of one side of a contradiction when there is combination, and in the negation when there is separation. But falsity consists in the reverse of this division.

             557. But how [the intellect] happens to understand [things which are combined and separated, whether] together or separately, pertains to another discussion; and by understanding things together or separately I mean understanding them not successively but insofar as they form a unity.

             558. For what is true and what is false are not in things themselves, so that what is good is true and what is evil is false, but only in the mind. And with regard to simple concepts and the whatness of things there is neither truth nor falsity in the mind. Hence the things which must be investigated about being and non-being in this sense must be considered later on (806).

             559. But since combination and separation exist in thought and not in things, and being in this sense is different from being in the proper senses (for these are either what a thing is, or of what sort, or how much, or anything else that the mind combines or separates), then being in the sense of what is accidental and being in the sense of what is true must be omitted from this science. For the cause of the former is the indeterminate, and of the latter some positive state of mind; and both of these pertain to the remaining class of being and do not indicate the existence of any definite kind of being outside of the mind. For this reason, then, let us exclude them from our study, and let us look for the causes and principles of being as being. Now from our discussions of the different meanings of words it is evident that being is used in several senses (435).

COMMENTARY

             1223. Having drawn his conclusions about accidental being, the Philosopher now settles the issue about the being which signifies the truth of a proposition; and in regard to this he does two things. First (556:C 1223), he determines the meaning of this kind of being. Second (559:C 1241), he excludes it from the principal study of this science ("But since combination").

             In regard to the first he does three things. First, he determines the meaning of this kind of being. Second (557:C 1227), he answers a question ("But how [the intellect]"). Third (558:C 1230) he clarifies a statement which he had made ("For what is true").

             He says (556), then, that "in one sense being means what is true," i.e., it signifies nothing else than truth; for when we ask if man is an animal, the answer is that he is, by which it is meant that this proposition is true. And in the same way non-being signifies in a sense what is false; for when one answers that he is not, it is meant that the statement made is false. Now this being which means what is true, and non-being which means what is false, depend on combination and separation; for simple terms signify neither truth nor falsity, whereas complex terms have truth and falsity through affirmation or negation. And here affirmation is called combination because it signifies that a predicate belongs to a subject, whereas negation is called separation because it signifies that a predicate does not belong to a subject.

             1224. Further, since words are the signs of concepts, we must speak in the same way about the concepts of the intellect; for those which are simple do not have truth and falsity, but only those which are complex through affirmation or negation.

             1225. And since the being and nonbeing just mentioned--the true and the false--depend on combination and separation, they therefore also depend on the division of a contradiction; for each part of a contradiction separates the true and the false from each other, so that one part is true and the other is false. For since a contradiction is constituted of an affirmation and a negation, and each of these is constituted of a predicate and a subject, then a predicate and a subject can be related to each other in two ways; because they are either connected in reality, as man and animal, or are unconnected, as man and ass.

             1226. Hence, if two contradictions are formed, one from connected terms, as "Man is an animal" and "Man is not an animal," and another from unconnected terms, as "Man is an ass" and "Man is not an ass," then truth and falsity divide each contradiction between themselves, so that the true on its side "resides in affirmation when there is combination," i.e., in connected terms, and "in negation when there is separation," i.e., in unconnected terms. For these two propositions "Man is an animal" and "Man is not an ass" are true. But the false on its side resides in the reverse of this division, i.e., in the contradictory of those statements which fall on the side of the true, because it consists in the negating of connected terms and in the affirming of unconnected terms; for these two propositions "Man is not an animal" and "Man is an ass" are false.

             1227. But how [the intellect] (557).

             Here he dismisses a problem that could arise from the foregoing remarks. For he said that the true and the false consist secondarily in the combination and separation of words, but primarily and properly in the combination and separation which the intellect makes. Now every combination and separation involves a plurality, and therefore the problem can arise how the intellect understands things which are combined and separated, whether together or separately. But he says that this pertains to another discussion namely, to The Soul.

             1228. Now together is used in two senses. For sometimes it signifies a unity, as when we say that those things which exist at one and the same instant are together in time; and sometimes it signifies the connection and proximity of things which succeed each other, as when we say that two men are together in place when their places are joined and next to each other, and in time when their times succeed each other. And since this is so, he therefore answers the proposed question which asks whether the intellect understands things which are combined or separated, together or separately, by saying that it does not understand them together according as some things are said to be together insofar as they succeed each other, but according as they are said to be together insofar as they form one thing.

             1229. And in this way he indicates the solution of this question. For if the intellect understands a man and an animal as they are in themselves, as two distinct things, it understands them successively by two simple concepts without forming an affirmation or a negation from them. But when it combines or separates them, it understands them both as one thing, i.e., according as one thing is constituted from them; just as the intellect also understands the parts of a whole as one thing by understanding the whole itself. For the intellect does not understand a house by understanding first the foundation and then the walls and then the roof, but it understands all of these together insofar as one thing is constituted from them. And in a similar way it understands a predicate and a subject together insofar as one judgment is constituted from them, namely, an affirmation or a negation.

             1230. For what is true (558).

             He explains a statement which he had made to the effect that truth and falsity consist in combination and separation; and he proves this by means of the process of elimination. For some of the things signified by a word are found in things outside of the mind, but others are found only in the mind. For white and black are found outside of the mind, but their concepts are found only in the mind. Now someone might think that the true and the false are also found in things, just as good and evil are, so that the true is a kind of good and the false a kind of evil; for this would be necessary if truth and falsity were found in things, since truth signifies a certain perfection of nature, and falsity a defect. Moreover, every perfection existing in things pertains to the perfection and goodness of their nature, whereas every defect and privation pertains to evil.

             1231. But he denies this, saying that the true and the false are not found in things in such a way that what is true on the part of reason is a kind of natural good, and what is false a kind of evil, but "they are found only in the mind," or intellect.

             1232. The intellect, however, has two operations. One of these is called the understanding of indivisibles, and this is the operation by which the intellect forms simple concepts of things by understanding the whatness of each one of them. The other operation is that by which the intellect combines and separates.

             1233. Now while truth and falsity are in the mind, they do not pertain to that operation by which the mind forms simple concepts and the whatness of things. This is what he means when he says "with regard to simple concepts and the whatness of things there is neither truth nor falsity in the mind." Hence as a result of this process of elimination it follows that since truth and falsity are neither in things nor in the mind when it apprehends simple concepts and the whatness of things, they must pertain primarily and principally to the combination and separation which the mind makes, and secondarily to that of words, which signify the mind's conceptions. Further, he concludes that everything which must be considered about being and nonbeing in this sense, namely, insofar as being signifies the true, and non-being the false, "must be considered later on," i.e., at the end of Book IX (806:C 1895), and also in The Soul, and in his works on logic. For the whole of logic seems to be devoted to the being and non-being spoken of in this way.

             1234. Now it must be noted that any kind of knowing attains its completion as a result of the likeness of the thing known existing in the knowing subject. Therefore, just as the completion of the thing known depends upon this thing having the kind of form which makes it to be such and such a thing, in a similar fashion the completion of the act of knowing depends upon the knowing subject having the likeness of this form. Moreover, just as the thing known is said to be good because it has the form which it ought to have, and evil because it is defective in some way, in a similar fashion the knowledge of the knowing subject is said to be true because this subject possesses a likeness of the thing known, and false because its knowledge falls short of such a likeness. Therefore, just as good and evil designate perfections of things, in a similar way truth and falsity designate perfections of knowledge.

             1235. But even though in sensory perception there can be a likeness of the thing known, nevertheless it does not belong to the senses to know the formality of this likeness but only to the intellect. Hence, even though the senses can be true in relation to sensible objects, they still cannot know the truth, but only the intellect can do this. And this is why it is said that truth and falsity are in the mind.

             1236. And although the intellect has within itself a likeness of the things known according as it forms concepts of incomplex things, it does not for that reason make a judgment about this likeness. This occurs only when it combines or separates. For when the intellect forms a concept of mortal rational animal, it has within itself a likeness of man; but it does not for that reason know that it has this likeness, since it does not judge that "Man is a mortal rational animal." There is truth and falsity, then, only in this second operation of the intellect, according to which it not only possesses a likeness of the thing known but also reflects on this likeness by knowing it and by making a judgment about it. Hence it is evident from this that truth is not found in things but only in the mind, and that it depends upon combination and separation.

             1237. And if a thing is sometimes said to be false, and the same applies to a definition, this will be so in reference to affirmation and negation. For a false thing, as is said at the end of Book V (526:C 1128), means one that does not exist in any way (for example, the commensurability of a diagonal) or one that exists but is naturally disposed to appear otherwise than it is. Similarly a definition is said to be false either because it is not the definition of any existing thing or because it is assigned to something other than that of which it is the definition. For it is evident that falsity is said to be in things or in definitions in all of these ways by reason of a false statement made about them.

             1238. The same thing is evident in the case of truth. For a thing is said to be true when it has the proper form which is shown to be present in it; and a definition is said to be true when it really fits the thing to which it is assigned.

             1239. It is also evident that nothing prevents truth from being a kind of good insofar as the knowing intellect is taken as a thing. For just as every other thing is said to be good because of its perfection, in a similar fashion the intellect which knows is said to be good because of its truth.

             1240. It is also evident from the statements made here that the true and the false, which are objects of knowing, are found in the mind, but that good and evil, which are the objects of appetite, are found in things. And it is also evident that, just as the act of knowing attains its completion as a result of the things known existing in the knowing subject, in a similar fashion every appetite attains its completion as a result of the ordering of the appetitive subject to its appetible objects.

             1241. But since combination (559).

             Here he excludes being in the sense of the true and being in the sense of the accidental from the principal consideration of this science. He says that combination and separation, on which truth and falsity depend, are found in the mind and not in things; and that if any combination is also found in things, such combination produces a unity which the intellect understands as one by a simple concept. But that combination or separation by which the intellect combines or separates its concepts is found only in the intellect and not in things. For it consists in a certain comparison of two concepts, whether these two are identical or distinct in reality. For sometimes the intellect uses one concept as two when it forms a combination, as when we say "Man is man"; and it is clear from this that such a combination is found only in the intellect and not in things. Therefore whatever is a being in the sense of the true, and consists in such a combination, differs from those things which are beings in the proper sense and are realities outside of the mind, each of which is "either what a thing is," i.e., substance, or of what sort, or how much, or any of the simple concepts which the mind combines or separates.

             1242. Therefore both being in the sense of the accidental and being in the sense of the true must be excluded from this science. For the cause of the former--being in the sense of the accidental--is the indeterminate, and therefore it does not come within the scope of art, as has been shown (544:C 1174); and the cause of the latter--being in the sense of the true--is "some positive state of mind," i.e., the operation of the intellect combining and separating, and therefore it belongs to that science which studies the intellect.

             1243. Another reason for excluding them is that, while "both of these," namely, being in the sense of the true and accidental being, belong to some class of being, they do not belong to being in the proper sense, which is found in reality. Nor do they designate another kind of being distinct from beings in the proper sense. For it is evident that accidental being is a result of the coincidental connection of beings which exist outside the mind, each of which is a being of itself. For even though the grammatical musical has being only accidentally, nevertheless both grammatical and musical are beings in the proper sense, because each of these taken by itself has a definite cause. Similarly the intellect combines and separates those things which are contained in the categories.

             1244. If, then, the class of being contained in the categories is sufficiently dealt with, the nature of accidental being and being in the sense of the true will be evident. And for this reason we must exclude these types of being and investigate the causes and principles of beings as beings in the proper sense. This is also evident from what has been established in Book V (435:C 885), where, in discussing the different senses of such terms, it was stated that being is used in many senses, as follows below at the beginning of Book VII (560:C 1245).

Book VII

BOOK VII

Substance, Essence and Definition

CONTENTS

Book VII

Lesson 1. The Primacy of Substance. Its Priority to Accidents

Lesson 2. Substance as Form, as Matter, and as Body. The Priority of Form. The Procedure in the Investigation of Substance

Lesson 3. What Essence Is. The Things to Which It Belongs

Lesson 4. The Analogous Character of Definition. Its Applicability to Accidents

Lesson 5. The Relation of Essence to Thing in Essential and in Accidental Predication

Lesson 6. Becoming--by Nature, by Art, and by Chance. The Source and Subject of Becoming

Lesson 7. The Composite and not the Form Is Generated. The Ideas Are neither Principles of Generation nor Exemplars

Lesson 8. Generation by Art and by Nature or by Art alone. Generation of Composites, not Substantial or Accidental Forms

Lesson 9. Parts of the Quiddity and Definition. Priority of Parts to Whole

Lesson 10. Priority of Parts to Whole and Their Role in Definition

Lesson 11. What Forms Are Parts of the Species and of the Intelligible Structure

Lesson 12. The Unity of the Thing Defined and of the Definition

Lesson 13. Rejection of Universals as Substances

Lesson 14. Rejection of Universals as Separate Substances

Lesson 15. Three Arguments Why Ideas Cannot Be Defined

Lesson 16. Composition in Sensible Substances. Non-substantiality of Unity and Being. Plato's Doctrine of Ideas

Lesson 17. The Role of Nature and Substance in the Sense of Essence as Principle and Cause