The Romantic Manifesto_ A Philosophy of Literature - Ayn Rand [4]
In any given moment, concepts enable man to hold in the focus of his conscious awareness much more than his purely perceptual capacity would permit. The range of man’s perceptual awareness—the number of percepts he can deal with at any one time—is limited. He may be able to visualize four or five units—as, for instance, five trees. He cannot visualize a hundred trees or a distance of ten light-years. It is only his conceptual faculty that makes it possible for him to deal with knowledge of that kind.
Man retains his concepts by means of language. With the exception of proper names, every word we use is a concept that stands for an unlimited number of concretes of a certain kind. A concept is like a mathematical series of specifically defined units, going off in both directions, open at both ends and including all units of that particular kind. For instance, the concept “man” includes all men who live at present, who have ever lived or will ever live—a number of men so great that one would not be able to perceive them all visually, let alone to study them or discover anything about them.
Language is a code of visual-auditory symbols that serves the psycho-epistemological function of converting abstractions into concretes or, more precisely, into the psycho-epistemological equivalent of concretes, into a manageable number of specific units.
(Psycho-epistemology is the study of man’s cognitive processes from the aspect of the interaction between the conscious mind and the automatic functions of the subconscious.)
Consider the enormous conceptual integration involved in any statement, from the conversation of a child to the discourse of a scientist. Consider the long conceptual chain that starts from simple, ostensive definitions and rises to higher and still higher concepts, forming a hierarchical structure of knowledge so complex that no electronic computer could approach it. It is by means of such chains that man has to acquire and retain his knowledge of reality.
Yet this is the simpler part of his psycho-epistemological task. There is another part which is still more complex.
The other part consists of applying his knowledge—i.e., evaluating the facts of reality, choosing his goals and guiding his actions accordingly. To do that, man needs another chain of concepts, derived from and dependent on the first, yet separate and, in a sense, more complex: a chain of normative abstractions.
While cognitive abstractions identify the facts of reality, normative abstractions evaluate the facts, thus prescribing a choice of values and a course of action. Cognitive abstractions deal with that which is; normative abstractions deal with that which ought to be (in the realms open to man’s choice).
Ethics, the normative science, is based on two cognitive branches of philosophy: metaphysics and epistemology. To prescribe what man ought to do, one must first know what he is and where he is—i.e., what is his nature (including his means of cognition) and the nature of the universe in which he acts. (It is irrelevant, in this context, whether the metaphysical base of a given system of ethics is true or false; if it is false, the error will make the ethics impracticable. What concerns us here is only the dependence of ethics on metaphysics.)
Is the universe intelligible to man, or unintelligible and unknowable? Can man find happiness on earth, or is he doomed to frustration and despair? Does man have the power of choice, the power to choose his goals and to achieve them, the power to direct the course of his life—or is he the helpless plaything of forces beyond his control, which determine his fate? Is man, by nature, to be valued as good, or to be despised as evil? These are metaphysical questions, but the answers to them determine the kind of ethics men will accept and practice; the answers are the link between metaphysics and ethics. And although metaphysics as such is not a