How We Reason!..
If you were asked to describe the most embarrassing of your class-room experiences, you would probably cite the occasions when the instructor asks you a series of questions demanding close reasoning. As he pins you down to statement of facts and forces you to draw valid conclusions, you feel in a most perplexed frame of mind.Either you find yourself unable to give reasons, or you entangle yourself in contradictions. In short, you flounder about helplessly and feel as though the bottom of your ship of knowledge has dropped out. And when the ordeal is over and you have made a miserable botch of a recitation which you thought you had been perfectly prepared for, you complain that "if the instructor had followed the book," or "if he had asked straight questions," you would have answered every one perfectly, having memorized the lesson "word for word."
This complaint, so often voiced by students, reveals the
fundamental characteristic which distinguishes the mental
operation of reasoning from the others we have studied.
In
reasoning we face a new kind of situation presenting
difficulties not encountered in the simpler processes of
sensation, memory, and imagery, and when we attempt to
substitute these simple processes for reasoning, we fail
miserably, for the two kinds of processes are essentially
different, and cannot be substituted one for the other.
Broadly speaking, the mental activities of study may be divided
into two groups, which, for want of better names, we shall call
processes of acquisition and processes of construction. The
mental attitude of the first is that of acquirement. "Sometimes
our main business seems to be to acquire knowledge; certain
matters are placed before us in books or by our teachers, and we
are required to master them, to make them part of our stock of
knowledge.
At other times we are called upon to use the
knowledge we already possess in order to attain some end that is
set before us." "In geography, for example, so long as we are
merely learning the bare facts of the subject, the size and
contours of the different continents, the political divisions,
the natural features, we are at the acquisitive stage." "But
when we go on to try to find out the reasons why certain facts
that we have learned should be as they are and not otherwise, we
pass to the constructive stage.
We are working constructively
when we seek to discover why it is that great cities are so
often found on the banks of rivers, why peninsulas more
frequently turn southward than northward." You readily see that
this constructive method of study involves the setting and
solving of problems as its distinguishing feature, and that in
the solution of these problems we make use of reason.
A
little reflection will show that though there is a distinct
difference between processes of acquisition and of construction,
nevertheless the two must not be regarded as entirely separate
from each other. "In acquiring new facts we must always use a
little reason, while in constructive work, we cannot always rely
upon having all the necessary matter ready to hand.
We have
frequently to stop our constructive work for a little in order
to acquire some new facts that we find to be necessary. Thus we
acquire a certain number of new facts while we are reasoning
about things, and while we are engaged in acquiring new matter
we must use our reason at least to some small extent." The two
overlap, then.
But there is a difference between them from the
standpoint of the student, and the terms denote two
fundamentally different attitudes which students take in study.
The two attitudes may be illustrated by contrasting the two
methods often used in studying geometry. Some students memorize
the theorem and the steps in the demonstration, reciting them
verbatim at class-hour. Others do not memorize, but reason out
each step to see its relation to the preceding step, and when
they see it must necessarily follow, they pass on to the next
and do the same.
These two types of students apparently arrive
at the same conclusions, but the mental operations leading up to
the Q.E.D. of each are vastly different. The one student does
his studying by the rote memory method, the other by the road of
reasoning. The former road is usually considered the easier, and
so we find it most frequently followed. To memorize a table, a
definition, or a series of dates is relatively easy.
One knows
exactly where one is, and can keep track of one's progress and
test one's success. Some people are attracted by such a task and
are perfectly happy to follow this plan of study. The kind of
mind that contents itself with such phonographic records,
however, must be acknowledged to be a commonplace sort of
affair.
We recognize its limitations in ordinary life,
invariably rating it lower than the mind that can reason to new
conclusions and work independently. Accordingly, if we wish to
possess minds of superior quality, we see that we must develop
the reasoning processes.
When we examine the mental processes by which we think constructively, or, in other words, reason, we find first of all that there is recognition of a problem to be solved. When we start to reason, we do it because we find ourselves in a situation from which we must extricate ourselves. The situation may be physical, as when our automobile stops suddenly on a country road; or it may be mental, as when we are deciding what college to attend. In both cases, we recognize that we are facing a problem which must be solved.
After recognition of the problem, our next step is to start
vigorous efforts to solve it. In doing this, we cast about for
means; we summon all the powers at our disposal. In the case of
the automobile, we call to mind other accidents and the causes
of them; we remember that once the spark-plug played out, so we
test this hypothesis. At another time some dust got into the
carburetor, so we test this.
So we go on, calling up possible
causes and applying appropriate remedies until the right one is
found and the engine is started. In bringing to bear upon the
problem facts from our past experience, we form a series of
judgments. In the case of the problem as to what college to
attend, we might form these judgments: this college is nearer
home; that one has a celebrated faculty; this one has good
laboratories; that one is my father's alma mater. So we might go
on, bringing up all the facts regarding the problem and fitting
each one mentally to see how it works.
Note that this
utilization of ideas should not consist merely of fumbling about
in a vague hope of hitting upon some solution. It must be a
systematic search, guided by carefully chosen ideas. For
example, "if the clock on the mantle-piece has stopped, and we
have no idea how to make it go again, but mildly shake it in the
hope that something will happen to set it going, we are merely
fumbling. But if, on moving the clock gently so as to set the
pendulum in motion, we hear it wobbling about irregularly, and
at the same time observe that there is no ticking of any kind,
we come to the conclusion that the pendulum has somehow or other
escaped the little catch that connects it with the mechanism, we
have been really thinking.
From the fact that the pendulum
wobbles irregularly, we infer that it has lost its proper catch.
From the fact that there is no ticking, we infer the same thing,
for even when there is something wrong with the clock that will
prevent it from going permanently, if the pendulum is set in
motion by force from without it will tick for a few seconds
before it comes to rest again. The important point to observe is
that there must be inference. This is always indicated by the
word therefore or its equivalent. If you reach a
conclusion without having to use or at any rate to imply a
therefore, you may take it for granted that you have not
been really thinking, but only jumping to conclusions."
This process of putting facts in the form of judgments and drawing inferences, may be likened to a court-room scene where arguments are presented to the judge. As each bit of evidence is submitted, it is subjected to the test of its applicability to the situation or to similar situations in the past. It is rigidly examined and nothing is accepted as a candidate for the solution until it is found by trial (of course, in imagination) to be pertinent to the situation.
The third stage of the reasoning process comes when some plan
which has been suggested as a possible solution of the
difficulty proves effective, and we make the decision; the
arguments support or overthrow each other, adding to and
eliminating various considerations until finally only one course
appears possible.
As we said before, the solution comes
inevitably, as represented by the word therefore. Little
active work on our part is necessary, for if we have gone
through these other phases properly the decision will make
itself. You cannot make a wrong decision if you have the facts
before you and have given each the proper weight. When the
solution comes, it is recognized as right, for it comes tinged
with a feeling that we call belief.
Now that we have found the reasoning process to be one of
problem-solving, of which the first step is to acknowledge and
recognize the difficulty, the second, to call up various methods
of solution, and the third, to decide on the basis of one of the
solutions that comes tinged with certainty, we are ready to
apply this schema to study in the hope that we may discover the
causes and remedies for the reasoning difficulties of students.
In view of the fact that reasoning starts out with a problem,
you see at once that to make your study effective you must study
in problems. Avoid an habitual attitude of mere acquisition. Do
not memorize facts in the same pattern as they are handed out to
you. In history, in general literature, in science, do not read
facts merely as they come in the text, but seek the relations
between them.
Voluntarily set before yourself intellectual
problems. Ask yourself, why is this so? In other words,
in your study do not merely acquire, but also construct.
The former makes use mostly of memory and though your memorizing
be done ever so conscientiously, if it comprise the main part of
your study, you fail to utilize your mind to its fullest extent.
Let us now consider the second stage of the reasoning process as
found in study. At this stage the facts in the mind are brought
forward for the purpose of being fitted into the present
situation, and the essential thing is that you have a large
number of facts at your disposal. If you are going to reason
effectively about problems in history, mathematics, geography,
it is absolutely indispensable that you know many facts about
the subjects.
One reason why you experience difficulty in
reasoning about certain subjects is that you do not know enough
about them. Particularly is this true in such subjects as
political economy, sociology and psychology. The results of such
ignorance are often demonstrated in political and social
movements. Why do the masses so easily fall victims to doubtful
reforms in national and municipal policies? Because they do not
know enough about these matters to reason intelligently.
Watch
ignorant people listening to a demagogue and see what
unreasonable things they accept. The speaker propounds a
question and then proceeds to answer it in his own way. He makes
it appear plausible, assuring his hearers it is the only way,
and they agree because they do not have enough other facts at
their command to refute it. They are unable, as we say, to see
the situation in several aspects. The mistakes in reasoning
which children make have a similar basis.
The child reaches for
the moon, reasoning—"Here is something bright; I can touch most
bright things; therefore, I can touch this." His reasoning is
fallacious because he does not have all the facts. This
condition is paralleled in the class-room when students make
what are shamefacedly looked back upon as miserable blunders.
When one of these fiascos occurs the cause can many times be
referred to the fact that the student did not have enough facts
at his command. Speaking broadly, the most effective reasoning
in a field can be done by one who has had the most extensive
experiences in that field.
If one had complete acquaintance with
all facts, one would have perfect conditions for reasoning. Thus
we see that effectiveness in reasoning demands an extensive
array of facts. Accordingly, in your courses of study you must
read with avidity. When you are given a list of readings in a
course, some of which are required and some optional, read both
sets, and every new fact thus secured will make you better able
to reason in the field.
But good reasoning demands more than mere quantity of ideas. The ideas must conform to certain qualitative standards before they may be effectively employed in reasoning. They must arise with promptness, in an orderly manner, pertinent to the matter in hand, and they must be clear. In securing promptness of association on the part of your ideas, employ the methods described in the chapter on memory. Make many logical associations with clearness and repetition. In order to insure the rise of ideas in an orderly manner, pay attention to the manner in which you acquire them.
Remember, things will be recalled as they were impressed, so the
value of your ideas in reasoning will depend upon the manner in
which you make original impressions. A further characteristic of
serviceable ideas is clarity.
Ideas are sometimes described as
"clear" in opposition to "muddy." You know what is meant by
these distinctions, and you may be assured that one cause for
your failures in reasoning is that your ideas are not clear.
This manifests itself in inability to make clear statements and
to comprehend clearly. The latter condition is easily
illustrated. When you began the study of geometry you faced a
multitude of new terms; we call them technical terms, such as
projection, scalene, theory of limits.
These had to be clearly
understood before you could reason in the subject. And when, in
the progress of your study, you experienced difficulty in
reasoning out problems, it was very likely due to the fact that
you did not master the technical terms, and as soon as you
encountered the difficulties of the course, you failed because
your foundation laying did not involve the acquisition of clear
ideas. Examine your difficulties in reasoning subjects and if
you find them traceable to vagueness of ideas, take steps to
clarify them.
Ideas may be clarified in two ways: by definition and by
classification. Definition is a familiar device, for you have
had much to do with it in learning. The memorization of
definitions is an excellent practice, not as an end in itself,
but as a means to the end of effective reasoning.
Throughout
your study, then, pay much attention to definitions. Some you
will find in your texts, but others you will have to make for
yourself. In order to get practice in this, undertake the
manufacture of a few definitions, using terms such as charity,
benevolence, natural selection. This exercise will reveal what
an exacting mental operation definition is and will prove how
vague most of your thinking really is.
A large stock of definitions will help you to think rapidly. Standing as they do for a large group of experiences, definitions are a means of mental economy. For illustration of their service in reasoning, suppose you were asked to compare the serf, the peon and the American slave. If you have a clean-cut definition of each of these terms, you can readily differentiate between them, but if you cannot define them, you will hardly be able to reason concerning them.
The second means of clarifying ideas is classification. By this is meant the process of grouping similar ideas or similar points of ideas. For example, your ideas of serf, peon and slave have some points in common. Group the ideas, then, with reference to these points. Then in reasoning you can quickly place an idea in its proper group.
The third stage of the reasoning process is decision, based on
belief, and it comes inevitably, provided the other two
processes have been performed rightly. Accordingly, we need say
little about its place in study. One caution should be pointed
out in making decisions. Do not make them hastily on the basis
of only one or two facts. Wait until you have canvassed all the
ideas that bear importantly upon the case.
The masses that
listen top eagerly to the demagogue do not err merely from lack
of ideas, but partly because they do not utilize all the facts
at their disposal. This fault is frequently discernible in
impulsive people, who notoriously make snap-judgments, which
means that they decide before canvassing all the evidence. This
trait marks the fundamental difference between superficial and
profound thinkers. The former accept surface facts and decide
immediately, while the latter refuse to decide until after
canvassing many facts.
In the improvement of reasoning ability your task is mainly one
of habit formation. It is necessary, first, to form the habit of
stating things in the form of problems; second, to form habits
by which ideas arise promptly and profusely; third, to form
habits of reserving decisions until the important facts are in.
These are all specific habits that must be built up if the
reasoning processes of the mind are to be effective. Already you
have formed some habits, if not habits of careful looking into
things, then habits of hasty, heedless, impatient glancing over
the surface.
Apply the principles of habit formation already
enunciated, and remember that with every act of reasoning you
perform, you are moulding yourself into a careless reasoner or
an accurate reasoner, into a clear thinker or a muddy thinker.
This chapter shows that reasoning is one of the highest powers
of man. It is a mark of originality and intelligence, and stamps
its possessor not a copier but an originator, not a follower but
a leader, not a slave, to have his thinking foisted upon him by
others, but a free and independent intellect, unshackled by the
bonds of ignorance and convention.
The man who employs reason in
acquiring knowledge, finds delights in study that are denied to
a rote memorizer. When one looks at the world through glasses of
reason, inquiring into the eternal why, then facts take
on a new meaning, knowledge comes with new power, the facts of
experience glow with vitality, and one's own relations with them
appear in a new light.
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