"Underground Economy" is a term that refers to those individuals and businesses that deal in cash and/or use other schemes to conceal their activities, identities and true tax liability from government licensing, regulatory, and taxing agencies.
Changed in version 3.9: Evaluating NotImplemented in a boolean context is deprecated. Whileit currently evaluates as true, it will emit a DeprecationWarning.It will raise a TypeError in a future version of Python.
Every existing thing is true, in that it is the expression of an idea which exists in the mind of God, and is, as it were, the exemplar according to which the thing has been created or fashioned. Just as human creations a cathedral, a painting, or an epic conform to and embody the ideas of architect, artist, or poet, so, only in a more perfect way, God's creatures conform to and embody the ideas of Him who gives them being. (Q. D., De verit., a. 4; Summa 1:16:1.) Things that exist, moreover, are active as well as passive. They tend not only to develop, and so to realize more and more perfectly the idea which they are created to express, but they tend also to reproduce themselves. Reproduction obtains wherever there is interaction between different things, for an effect, in so far as it proceeds from a given cause, must resemble that cause. Now the cause of knowledge in man is ultimately, at any rate the thing that is known. By its activities it causes in man an idea that is like to the idea embodied in the thing itself. Hence, things may also be said to be ontologically true in that they are at once the object and the cause of human knowledge. (Cf. IDEALISM; and Summa, I:16:7 and 1:16:8; m 1. periherm., 1. III; Q.D., I, De veritate, a. 4.)
To judge that things are what they are is to judge truly. Every judgment comprises certain ideas which are referred to, or denied of, reality. But it is not these ideas that are the objects of our judgment. They are merely the instruments by means of which we judge. The object about which we judge is reality itself either concrete existing things, their attributes, and their relations, or else entities the existence of which is merely conceptual or imaginary, as in drama, poetry, or fiction, but in any case entities which are real in the sense that their being is other than our present thought about them. Reality, therefore, is one thing, and the ideas and judgments by means of which we think about reality, another; the one objective, and the other subjective. Yet, diverse as they are, reality is somehow present to, if not present in consciousness when we think, and somehow by means of thought the nature of reality is revealed. This being the case, the only term adequate to describe the relation that exists between thought and reality, when our judgments about the latter are true judgments, would seem to be conformity or correspondence. "Veritas logica est adaequatio intellectus et rei" (Summa, I:21:2). Whenever truth is predicable of a judgment, that judgment corresponds to, or resembles, the reality, the nature or attributes of which it reveals. Every judgment is, however, as we have said, made up of ideas, and may be logically analyzed into a subject and a predicate, which are either united by the copula is, or disjoined by the expression is not. If the judgment be true, therefore, these ideas must also be true, i.e. must correspond with the realities which they signify. As, however, this objective reference or significance of ideas is not recognized or asserted except in the judgment, ideas as such are said to be only "materially" true. It is the judgment alone that is formally true, since in the judgment alone is a reference to reality formally made, and truth as such recognized or claimed.
The negative judgment seems at first sight to form an exception to the general law that truth is correspondence; but this is not really the case. In the affirmative judgment both subject and predicate and the union between them, of whatever kind it may be, are referred to reality; but in the negative judgment subject and predicate are disjoined, not conjoined. In other words, in the negative judgment we deny that the predicate has reality in the particular case to which the subject refers. On the other hand, all such predicates presumably have reality somewhere, otherwise we should not talk about them. Either they are real qualities or real things, or at any rate somebody has conceived them as real. Consequently the negative judgment, if true, may also be said to correspond with reality, since both subject and predicate will be real somewhere, either as existents or as conceptions. What we deny, in fact, in the negative judgment is not the reality of the predicate, but the reality of the conjunction by which subject and predicate are united in the assertion which we implicitly challenge and negate. Subject and predicate may both be real, but if our judgment be true, they will be disjoined, not united in reality.
But what precisely is this reality with which true judgments and true ideas are said to correspond? It is easy enough to understand how ideas can correspond with realities that are themselves conceptual or ideal, but most of the realities that we know are not of this kind. How, then, can ideas and their conjunctions or disjunctions, which are psychical in character, correspond with realities which for the most part are not psychical but material? To solve this problem we must go back to ontological truth which, as we saw, implies the creation of the universe by One Who, in creating it, has expressed therein His own ideas very much as an architect or an author expresses his ideas in the things that he creates except that creation in the latter case supposes already existent material. Our theory of truth supposes that the universe is built according to definite and rational plan, and that everything within the universe expresses or embodies an essential and integral part of that plan. Whence it follows that just as in a building or in a piece of sculpture we see the plan or design that is realized therein, so, in our experience of concrete things, by means of the same intellectual power, we apprehend the ideas which they embody or express. The correspondence therefore, in which truth consists is not a correspondence between ideas and anything material as such, but between ideas as they exist in our mind and function in our acts of cognition, and the idea that reality expresses and embodies ideas which have their origin and prototype in the mind of God.
Accordingly, if in the real world such a condition of things obtains if, that is to say, the thing in question does exist and has in fact some peculiar and distinctive property whereby it affects my senses in a certain peculiar and distinctive way my judgment is true.
Correspondence between thought and reality, idea and thing, or knower and known, therefore, turns out in all cases to be of the very essence of the truth relation. Whence, say the opponents of our theory, in order to know whether our judgments are true or not, we must compare them with the realities that are known a comparison that is obviously impossible, since reality can only be known through the instrumentality of the judgment. This objection, which is to be found in almost every non-Scholastic book dealing with the subject, rests upon a grave misapprehension of the real meaning of the Scholastic doctrine. Neither St. Thomas nor any other of the great Scholastics ever asserted that correspondence is the scholastic criterion of truth. To inquire what truth is, is one question; to ask how we know that we have judged truly, quite another. Indeed, the possibility of answering the second is supposed by the mere fact that the first is put. To be able to define truth, we must first possess it and know that we possess it, i.e. must be able to distinguish it from error. We cannot define that which we cannot distinguish and to some extent isolate. The Scholastic theory supposes, therefore, that truth has already been distinguished from error, and proceeds to examine truth with a view to discovering in what precisely it consists. This standpoint is epistemological, not criteriological. When he says that truth is correspondence, he is stating what truth is, not by what sign or mark it can be distinguished from error. By the old Scholastics the question of the criteria of truth was scarcely touched. They discussed the criteria of valid reasoning in their treatises on logic, but for the rest they left the discussion of particular criteria to the methodology of particular sciences. And rightly so, for there is really no criterion of universal application. The distinction of truth and error is at bottom intuitional. We cannot go on making criteria ad infinitum. Somewhere we must come to what is ultimate, either first principles or facts.
This is precisely what the Scholastic theory of truth affirms. In deference to the modern demand for an infallible and universal criterion of truth, not a few Scholastic writers of late have suggested objective evidence. Objective evidence, however, is nothing more than the manifestation of the object itself, directly or indirectly, to the mind, and hence is not strictly a criterion of truth, but its foundation. As Père Geny puts it in his pamphlet discussing "Une nouvelle théorie de la connaissance", to state that evidence is the ultimate criterion of truth is equivalent to stating that knowledge properly so called has no need of a criterion, since it is absurd to suppose a knowledge which does not know what it knows. Once grant, as all must grant who wish to avoid absolute scepticism, that knowledge is possible, and it follows that, properly used, our faculties must be capable of giving us truth. Doubtless, coherence and harmony with facts are pro tanto signs of truth's presence in our minds; but what we need for the most part are not signs of truth, but signs or criteria of error not tests whereby to discover when our faculties have gone right, but tests whereby to discover when they have gone wrong. Our judgments will be true, i.e. thought will correspond with its object, provided that object itself, and not any other cause, subjective or objective, determines the content of our thought. What we have to do, therefore, is to take care that our assent is determined by the evidence with which we are confronted, and by this alone. With regard to the senses this means that we must look to it that they are in good condition and that the circumstances under which we are exercising them are normal; with regard to the intellect that we must not allow irrelevant considerations to weigh with us, that we must avoid haste, and, as far as possible, get rid of bias, prejudice, and an over-anxious will to believe. If this be done, granted there is sufficient evidence, true judgments will naturally and necessarily result. The purpose of argument and discussion, as of all other processes that lead to knowledge, is precisely that the object under discussion may manifest itself in its various relations, either directly or indirectly, to the mind. And the object as thus manifesting itself is what the Scholastic calls evidence. It is the object, therefore, which in his view is the determining cause of truth. All kinds of processes, both mental and physical, may be necessary to prepare the way for an act of cognition, but in the last resort such an act must be determined as to its content by the causal activity of the object, which makes itself evident by producing in the mind an idea that is like to the idea of which its own existence is the realization.
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