In the Fourth Article We Ask: IS THERE ONLY ONE TRUTH BY WHICH ALL THINGS ARE TRUE?
Difficulties:
It seems that this is so, for
1. Anselm says that the relation of truth to all true things is like that of time to all temporal things. But there is only one time to which all temporal things are related. Therefore, there will be only one truth to which all true things are related.
2. But it was said that truth is used in two ways. In one, it means the entity of a thing, as when Augustine says: "The true is that which is." If truth be understood in this sense, then there should be as many truths as there are essences of things. In the second way in which truth is used, it signifies truth as it is expressed in the intellect. Consequently, Hilary writes: "The true affirms existence." But since nothing can manifest anything to the intellect except in virtue of the first divine truth, all truths are, in some sense, one, inasmuch as they all move the intellect--just as colors are one in moving the sense of sight, since they all move it because of one thing: light.
On the contrary, however, time, the measure of all temporal things, is numerically one; and if truth is related to true things as time is related to temporal things, the truth of all true things must also be numerically one. It will not be sufficient for all truths to be one in their action of moving the intellect or to be one in their exemplary cause.
3. Anselm argues as follows: If there are as many truths as there are true things, then truths should change as true things change. But truths do not change with the changes of true things, for, even when true and correct things are destroyed, the truth and correctness by which they are true or correct remain. There is, therefore, only one truth. He proves the minor from this: When a sign is destroyed, the correctness of the signification remains, for it remains correct that the sign should signify that which it did signify. For the same reason, rectitude or truth remains even when a true or correct thing has been destroyed.
4. With regard to created things, nothing is identical with that whose truth it is. The truth of a man is not the man; the truth of flesh is not the flesh. But every created thing is true. No created thing, therefore, is truth. Consequently, every truth is uncreated, and so there is only one truth.
5. As Augustine says, only God is greater than the human mind. But, as he proves elsewhere, truth is greater than the human mind, for truth certainly cannot be said to be less than the human mind. If this were so, it would be within the competence of the mind to pass judgment on truth. This, of course, is false, for the mind does not judge truth but judges according to the truth, like a magistrate who does not pass judgment upon the law but, as Augustine himself says, judges according to the law. Similarly, the mind of man cannot be said to be equal to truth, for it judges everything according to truth. It does not judge everything according to itself. Truth, therefore, must be God alone, and so there is only one truth.
6. Augustine has proved that truth is not perceived by any bodily sense. His proof is that nothing is perceived by sense unless it is changeable. But truth is unchangeable. Truth, therefore, is not perceived by sense.
One could similarly argue that everything created is changeable. But truth is not changeable. Therefore, it is not a creature but is something uncreated. Consequently, there is only one truth.
7. Augustine offers another proof in the same place: "There is no sensible thing that does not have some similarity to what is false, and, as a result, the two cannot be distinguished. To mention only one example: all that we sense through the body. Even when these objects are not present to the senses, we experience their images as though they were present, as when we are asleep or become delirious." Truth, however, has no resemblance to what is false. Therefore, truth is not perceived by a sense.
One could similarly argue that every created thing has some similarity to what is false in so far as it has some defect. Nothing created, therefore, is truth, and so there is only one truth.
To the Contrary:
1'. Augustine writes: "As likeness is the form of like things, so truth is the form of true things." But for many like things there are many likenesses. Therefore, for many true things there are many truths.
2'. Just as every created truth is derived from the uncreated truth as its model, and has its truth from it, so all intelligible light is derived from the first uncreated light as from its exemplary cause, and from it possesses its power of making things known. But we say that there are many intelligible lights, as is clear from the writings of Dionysius. Therefore, following this analogy, it seems we must likewise simply concede that there are many truths.
3'. Although all colors are able to affect the sense of sight in virtue of light, nevertheless, in themselves colors are distinct and different, and cannot be said to be one, except from a particular point of view. Consequently, even though all created truths manifest themselves in the intellect by virtue of the first truth, we cannot for this reason say that there is one truth, unless considered under this one aspect.
4'. Just as a created truth can manifest itself to the intellect only by virtue of the uncreated truth, so no power in a creature can act except by virtue of the uncreated power. Yet we do not say that somehow or other there is one power for all powers; so, in the same manner, we should not say that in some way there is one truth for all truths.
5'. God as a cause is related to things in three ways: as an efficient, an exemplary, and as a final cause. Consequently, by a kind of appropriation, the entity of things is referred to God as efficient cause, their truth to Him as an exemplary cause, their goodness to Him as a final cause--even though, properly speaking, each single one could be referred to each single cause. But in no manner of speaking do we say that there is one goodness for all good things, or one entity for all beings. Therefore, we should not say that there is one truth for all true things.
6'. Although there is one uncreated truth from which all created truths take their model, these truths are not modeled on it in the same way. For while it is true that the uncreated truth has the same relation to all, all do not have the same relation to it--as pointed out in The Causes. Necessary and contingent truths are modeled on the uncreated truth in quite different ways. But different ways of imitating the divine model cause diversity among created things. Consequently, there are many created truths.
7'. Truth is "the conformity of thing and intellect." But since things differ specifically, there cannot be a single conformity to the intellect. So, since true things are specifically different, there cannot be one truth for all true things.
8'. Augustine writes as follows: "One must believe that the nature of the human mind is so connected with intelligible things that it gazes upon all it knows by means of a unique light." Now, the light by whose means the soul knows all things is truth. Truth, therefore, belongs to the same genus as the soul and must be a created thing. Consequently, in different creatures there are different truths.
REPLY:
From our previous discussion it is clear that truth is properly found in the human or divine intellect, as health is found in an animal. In things, however, truth is found because of some relation to intellect--just as health is said to be in things other than animals in so far as they bring about or preserve animal health. Truth, therefore, is properly and primarily in the divine intellect. In the human intellect, it exists properly but secondarily, for it exists there only because of a relation to either one of the two truths just mentioned.
In his gloss on these words of Psalm 11 (v. 2), "Truths are decayed from among the children of men," Augustine writes that the truth of the divine intellect is one, and from it are drawn the many truths that are in the human intellect--"just as from one man's face many likenesses are reflected in a mirror." Now, there are many truths in things, just as there are many entities of things. But truth predicated of things because of their relation to the human intellect is, as it were, accidental to those things; for, supposing that the human intellect did not or could not exist, things would still remain essentially the same. But truth predicated of things because of their relation to the divine intellect is inseparably attendant on them, for they cannot exist except by reason of the divine intellect which keeps bringing them into being. Again, truth is primarily in a thing because of its relation to the divine intellect, not to the human intellect, because it is related to the divine intellect as to its cause, but to the human intellect as to its effect in the sense that the latter receives its knowledge from things. For this reason, a thing is said to be true principally because of its order to the truth of the divine intellect rather than because of its relation to the truth of a human intellect.
So, if truth in its proper sense be taken as that by which all things are primarily true, then all things are true by means of one truth, the truth of the divine intellect. This is the truth which Anselm writes about. But if truth in its proper sense be taken as that by which things are said to be true secondarily, then there are many truths about many true things, and even many truths in different minds about one true thing. Finally, if truth in its improper sense be taken as that by which all things are said to be true, then there are many truths for many true things, but only one truth for one true thing.
Things are called true from the truth in the divine or human intellect, just as food is called healthy, not because of any inherent form, but because of the health which is in an animal. If, however, a thing is called true because of the truth in the thing, which is simply its entity conformed with intellect, then it is so called because of something inhering in it after the manner of a form, as food is said to be healthy because of a quality of its own--which is the reason for its being said to be healthy.
Answers to Difficulties:
1. Time is related to temporal things as a measure is related to the measured. It is clear, therefore, that Anselm is referring to that truth which is only the measure of all true things. There is only one such truth numerically, just as there is only one time--as the second argument concludes. However, the truth in the human intellect or in things themselves is not related to things as an extrinsic or common measure is related to those it measures. It is related as a measured thing is related to a measure, for such is the relation of truth in a human intellect to things, and it must, as a consequence, vary as things vary. Or, it is related as an intrinsic measure to the thing itself, as is the case with the truth that is in things themselves. Intrinsic measures must be multiplied as the number of things measured is multiplied--just as dimensions must be multiplied with the multiplicity of bodies.
2. We concede the second argument.
3. The truth which remains after things are destroyed is the truth of the divine intellect, and this is numerically one. However, the truth which is in things or in the soul is diversified according to the diversity of things.
4. The proposition "Nothing is its own truth" is understood of things having a complete act of existence in reality. It is likewise said that "Nothing is its own act of existence," yet the act of existence of a thing is, in a sense, something created. In the same way, the truth of a thing is something created.
5. The truth by which the soul passes judgment on all things is the first truth; for, just as from the truth of the divine intellect there flow into the angelic intellects those intelligible species by which angels know all things, so does the truth of the first principles by which we judge everything proceed from the truth of the divine intellect as from its exemplary cause. Since we can judge by means of the truth of these first principles only in so far as this truth is a likeness of the first truth, we are said to judge everything according to the first truth.
6. That immutable truth is the first truth, which is neither perceptible by sense nor something created.
7. Although every creature has some similarity to what is false, created truth itself does not have this similarity. For a creature has some similarity to what is false in so far as it is deficient. Truth, however, does not depend on a creature in so far as it is deficient, but in so far as it rises above its deficiency by being conformed to the first truth.
Answers to Contrary Difficulties:
1'. Properly speaking, when two things are similar, likeness is found in both. Truth, however, being a certain agreement of intellect and thing, is not, properly speaking, found in both, but only in intellect; and since all things are true and said to be true in so far as they are in conformity with one intellect, the divine intellect, everything must be true according to one truth, even though in many like things there are many different likenesses.
2'. Although intelligible light has the divine light for its exemplary cause, light is nevertheless predicated in the proper sense of created intelligible lights. Truth, however, is not predicated in the proper sense of things having the divine intellect as their exemplary cause. Consequently, we do not say that there is one light in the same way that we say that there is one truth.
3'. Our reply given immediately above will answer the argument taken from colors, for visible is properly predicated of colors, also, even though they are not seen except by means of light.
4'-5'. Our answer to the fourth argument (from the nature of power) and to the fifth (from the nature of being) is the same.
6'. Even though things are modeled in different ways upon the divine truth, this does not keep things from being true in the proper sense of the term by a single truth--not by many truths. For that which is received in different ways in the things modeled upon the exemplar is not properly called truth with the same propriety as truth is said to be in the exemplar itself.
7'. Although things differing specifically are not on their own part conformed with the divine intellect by one conformity, the divine intellect to which all things are conformed is one, and on its part there is one conformity with all things--even though all things are not conformed to it in the same way. The truth of all things, therefore, is one in the manner described.
8'. Augustine is speaking of truth in our mind as it is modeled upon the divine mind as the likeness of a face is reflected in a mirror; and, as we said,* there are many reflections of the first truth in our souls. Or one can say that the first truth belongs to the genus of the soul if genus be taken in a broad sense, namely, in so far as everything intelligible or incorporeal is said to belong to one genus. Genus is used in this way in the Acts of the Apostles (17:28) where we read: "For we are also his offspring [genus]."