[II]

THE THEORY OF THE CONCEPT

Question as to who was the "father of Logic."

Just as whenever in Æsthetic any one sought the "father" of the science Plato was usually named, so whenever a like enquiry has been proposed for Logic that honourable title has been almost unanimously bestowed upon Aristotle. But even if we admit (as we must) in a somewhat empirical and expedient sense, the propriety of these searches for "discoverers" and "fathers," Aristotle could not in our eyes occupy that position. For if Logic is the science of the concept, such a science was evidently begun before him. Further, Aristotle himself claimed the distinction only of having reduced and treated the theory of reasoning[1] and recognized elsewhere that to Socrates belonged the merit of having directed attention to the examination and definition of the concept (τούς τ' ἐπακτικοὺς λόγους καὶ τὸ όρίζεσθαι), that is to say, to the very principle of logical Science,[2] the rigorous form of truth.

Socrates, Plato, Aristotle.

In this affirmation of the consistency and absoluteness of knowledge and of truth (sustained in him by a vivid religious and moral consciousness) lies the significance of Socrates as opposed to the Sophists; as indeed in the same thing lies the importance of Hellenic Logic of the truly classical period. This Logic elaborated the idea of conceptual knowledge, of science or of philosophy, and transmitted it to the modern world with a terminology, which is in great part that which we ourselves employ. We too reject in almost the same words as the Greek philosophers the renascent sophism, the perennial Protagoreanism, and the sensationalism which denies truth, and (like the ancient Gorgias), by declaring it incommunicable by the individual, individualizes and reduces it to practical utility. In Plato, the affirmation and glorification of conceptual knowledge was accompanied by contempt for the knowledge of the individual, and in comparison with the immortal world of ideas, the world of sensations was for him so dark and obscure as to disappear in his eyes like phantoms before the sun. But Aristotle, although he held firmly that there is no science of the accidental and individual, and of sensation, which is bound to space and time, to the where and the when, and that the object of science is the universal, the essence, which is being, was less exclusive than he; and as he saved the world of poetry from the condemnation of Plato, so, in all his philosophy and in all his work as physicist, politician and historian, he affirmed the world of experience and of history.[3]

Enquiries concerning the nature of the concept in Greece. The question of transcendence and immanence.

On the other hand, there was in Socrates only the consciousness of the universal still indefinite and vague; in Plato there appeared for the first time the consciousness of the true character of the universal, and so of its distinction from empirical universals; and in Aristotle this enquiry gave important results. The problem of the nature of the concept became, then and afterwards, interwoven with that other problem of the transcendence or immanence of the concepts; but since, notwithstanding many points of contact, the two problems cannot be completely identified, they must not be confounded. Indeed, the problem of the transcendence or immanence of the universals is reducible to the more general problem of the relation between values and facts, the ideal and the real, what ought to be and what is; whereas the other, concerning the nature of the universals, centres upon the distinction between universals that are truly logical, and pseudological universals, and upon the greater or less admissibility of one or the other or of both, and so upon their mode of relation. The point of contact between the two problems lies in this, that where pure and real universals are denied and only arbitrary and nominal universals allowed to subsist, the question of the immanence or transcendence of the universals also disappears. And as to the first problem and the polemic of Aristotle against Plato concerning the ideas, it has appeared to some critics (to Zeller and others) that Aristotle misunderstood his master and invented an error that Plato had never maintained, or attacked merely certain gross expositions of doctrine which were current in some Platonic school. To others again (to Lotze, for instance), it has seemed that Aristotle thought this problem, at bottom, in the same way as Plato, who by placing the ideas in a hyper-Uranian space, in a super-world or a super-heaven, thus came to refuse to them that reality which Aristotle himself refused to them and to consider them as values, not as beings; although Greek linguistic usage prevented Plato from expressing the difference, just as it prevented Aristotle from expressing the same thing, when it led him to describe genera as "second substances" (δεύτεραι οὺσίαι). However, as regards the first interpretation, it certainly seems to us that it is impossible to raise doubts about such a document as the testimony of Aristotle[4] by means of such frequently uncertain documents as the Platonic dialogues. And as regards the second interpretation, it seems to us that it does not so much purge Plato of the vice of transcendence as convict his adversary also of sharing that vice. On this point the opposition of Aristotle to his predecessor does not coincide with that of modern nominalism and empiricism to philosophic idealism, for the former sets in question the truth of the concept itself. Aristotle denied this truth as little as Plato; indeed he expressly asserted that his predecessor was right, and approved his definite accusation of the sophists that they were occupied not with the universal but with the accidental, that is to say, with not-being.

Controversies as to the various forms of concept in Plato.

The beginning of the enquiry as to the nature of universals or of ideas is to be seen, on the other hand, in Plato's embarrassments before the questions as to whether there are ideas of everything, of artificial as well as of natural things, of noble things and vile things alike, of things only or also of properties and relations; of good things or also of bad things (καλὸν καὶ αἰσχρόν, ἀγαθὸν καὶ κακόν)[5] He does not escape from the embarrassments, save occasionally, by making strange admissions, by accepting ideas of all the preceding, only to fall immediately afterwards into contradictions, through which however we see the outlines of the problems of to-day. Are the ideas representative concepts (of things) or are they not rather categories (ideas of relation)? Arc opposites particular kinds of ideas (if there exist ideas of base and ugly things, as well as of beautiful and good things)? Is it possible to distinguish, from the point of view of the Ideas, between the natural world and the human world (between natural things and artificial)? Plato himself refers to mathematical knowledge as distinct from philosophic knowledge.