Continuation:
The simpler organisms, such as plants, can survive by means of their automatic physical functions. The higher organisms, such as animals and man, cannot: their needs are more complex and the range of their actions is wider. The physical functions of their bodies can perform automatically only the task of using fuel, but cannot obtain that fuel. To obtain it, the higher organisms need the faculty of consciousness. A plant canobtainits food from the soil in which it grows. An animal has to hunt for it. Man has to produce it.
A plant has no choice of action; the goals it pursues are automatic an innate, determined byits nataure. Nourishment, water, sunlight are the values its nature has set it to seek. Its life is the standard of value directing its actions. There are alternatives in the conditions it encounters in its physical backgroun--such as heat or frost, drought or flood-- and there are certain actions which it is able to perform to combat adverse conditions, such as the ability of some plants to grow and crawl from under a rock to reach the sunlight. But whatever the conditions, there is no alternative in a plant's function: it acts automatically to further its life, it cannot act for its own destruction.
The range of actions required for the survival of the higher organisms is wider: it is proportionate to the range of their consciousness. The lower of the conscious species possess only the faculty of sensation, which is sufficient to direct their actions and provide for their needs. A sensation is produced by the automatic reaction of a sense organ to a stimulus from the outside world; it lasts for the duration of the immediate moment, as long as the stimulus lasts and no longer. Sensations are an automatic response, an automatic form of knowledge, which a consciousness can neither seek or evade. An organism that possesses only the faculty of sensation isguided by the pleasure-pain mechanism of the body, that is: by an automatic knowledge and an automatic code of values. Its life is the standard of value directing its actions. Within the range of action possible to it, it acts automatically to further its life and cannot act for its own destruction.
The higher organisms possess a much more potent from of consciousness: they possess the faculty of retaining sensations, which is the faculty of perception. A "perception" is a group of sensations automatically retained and integrated by the brain of a living organism, which gives it the ability to be aware, not of single stimuli, but of entities, of things. An animals is guided, not merely by immediate sensations but by percepts. Its actions are not single, discrete responses to a single, separate stimuli, but are directed by an integrated awareness of the perceptual reality confronting it. It is able to grasp the perceptual concretesimmediately present and it is able to form automatic perceptual associations, but it can go no further. It is able to learn certain skills to deal with specific situations, such as hunting or hiding, which the parents of the higher animals teach their youngs. But an animal has no choice in the knowledge and the skills that it acquires; it can only repeat them generation after generation. And an animal has no choice in the standard of value directing its actions: its senses provide it with an automatic code of values, an automatic knowledge of whta is good for it or evil, what benefits or endangers its life. An animal has o power to extend its knowledge or to evade it. In situations for which its knowledge is inadequate, it perishes--as, for instance, an animal that stands paralyzed on the track of a railroad in the path of a speeding train. But so long as it lives, an animal acts on its knowledge, with automatic safety and no power of choice; it cannot suspent its own consciousness--it cannot choose not to perceive--it cannot evade its own perceptions--it cannot ignore its own good, it cannot decide to choose the evil and act as its own destroyer.
Man has no automantic code survival. He has no automatic course of action, no automatic set of values. His senses do not tell him automatically what is good for him or evil, what will benefit his life or endanger it, what goals he should pursue and what means will achieve them, what values his life depends on, what course of action it requires. His own consciousness has to discover the answer to all these questions--but his consciousness will not function automatically. Man, the highest living species on this earth--the being whose consciousness has a limitless capacity for gaining knowledge--man is the only living entity born without any guarantee of remaining conscious at all. Man's particular distinction from all other living species is the fact that his consciousness is volitional.
Just as the automatic values directing the functions of a plant's body are sufficient for its survival, but are not sufficient for an animal's--so the automatic values provided by the sensory-perceptual mechanism of its consciousness are sufficient to guide an animal, but are not sufficient for man. Man's actions and survival rdquire the guidance of conceptual values derived from conceptual knowledge. But conceptual knowledge cannot be acquired automatically.
A "concept" is a mental integration of two or more perceptual concretes, which are isolated by a process of abstraction and united by means of a specific definition. Every word of man's language, with the exception of proper names, denotes a concept, an abstraction that stands for an unlimited number of concepts of a specific kind. It is by organizing his perceptual material into concepts, and his concepts into wider and still wider concepts that man is able to grasp and retain, to identify and integrate an unlimited amount of knowledge, a knowledge extending beyond the immediate perceptions of any given, immediate moment. Man's sense organs functions automatically; man's brain integrates his sense data into percepts automatically; but the process of integrating percepts into concepts--the process of abstraction and of concept-formation--is not automatic.
The process of concept-formation does not consist merely of garasping a few simple abstractions, such as "chair," "table,", "hot," "cold," and of learning to speak. It consist of a method using one's consciousness, best designated by the term "conceptualizing." It is not a passive state of registering random impressions. It is an actively sustained process of indentifying one's impressions in conceptual terms, of integrating every event and every observation into a conceptual context, of grasping relationship, differences, similarities in one's perceptual material and of abstracting them into new concepts, of drawing inferences, of making deductions, of reaching conclusions, of asking new questions and discovering new answers and expanding one's knowledge into an ever-growing sum. The faculty that directs this process, the faculty that works by means of concepts, is: REASON. The process is thinking.
Reason is the faculty that identifies and integrates the material provided by man's senses. it is a faculty that man has to exercise by choice. Thinking is not an automatic function. In any hour and issue of his life, man is free to think or to evade that effort. Thinking requires a state full, focused awareness. The act of focusing one's consciousness is volitional. Man can focus his mind to a full, active, purposefully directed awareness of reality--or he can unfocus it and let himself drift in a semiconscious daze, merely reacting to any chance stimulus of the immediate moment, at the mercy of his undirected sensory-perceptual mechanism and of any random, associational connections it migh happen to make.