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Philosophy
and Common Sense
by Jonathan Dolhenty, Ph.D.
As with the term "philosophy" itself, we can
assign both a broad general meaning and a strict
technical meaning to the expression "common
sense."
In its wide, popular meaning "common sense" is
simply the conglomeration of generally held
opinions and beliefs, more or less well founded,
more or less mixed up with error and prejudice,
which make up the voice of the community -- "what
everybody knows." It may also refer in this broad
usage to good practical sense in everyday affairs
-- to "good horse sense."
In a philosophical context the expression has
had a number of meanings. For the Romans, common
sense meant the vulgar opinions of mankind. For
Thomas Aquinas it was a technical expression for
the unifying sense ("central" sense). For certain
modern philosophers it has meant a kind of
"instinct" or "special feeling" for the truth (this
seems to be the doctrine held by Thomas Reid and
the "Common Sense" Scottish School of thought).
None of these usages square with the strict
interpretation that modern-day classical
philosophic realists (including the school of
"Contextual Realism") have given to the expression
"common sense" above. It is important, therefore,
to realize the exact sense in which it is used.
Common sense refers to the spontaneous
activity of the intellect, the way in which it
operates of its own native vigor before it has been
given any special training. It implies man's native
capacity to know the most fundamental aspects of
reality, in particular, the existence of things
(including our own existence), the first principles
of being (identity, noncontradiction, and excluded
middle), and secondary principles which flow
immediately from the self-evident principles
(causality, sufficient reason, etc.).
One of the points that links philosophy and
common sense is that they both use these
principles. They differ however in the way they use
them. Common sense uses them unconsciously,
unreflectively, uncritically. They can be
obscured or deformed for common sense by faulty
education, by cultural prejudices, by deceptive
sense imagery. Philosophy, on the contrary, uses
these principles critically, consciously,
scientifically. Philosophy can therefore defend
and communicate its knowledge.
The certainties of common sense, the insights of
a reasoning which is implicit rather than explicit,
are just as well founded as the certainties of
philosophy, for the light of common sense is
fundamentally the same as that of philosophy: the
natural light of the intellect. But in common
sense this light does not return upon itself by
critical reflection, is not perfected by scientific
reasoning. Philosophy, therefore, as contrasted
with common sense is scientific knowledge;
knowledge, that is, through causes.
A second point which links philosophy and common
sense is that they take all of reality for their
province -- common sense blindly, in a kind of
instinctive response of the individual to the
totality of experience; philosophy consciously, in
the endeavor to give every aspect of reality its
due.
This claim of philosophy to know the whole
reality does not mean that the philosopher makes
pretense of knowing everything -- the human
intellect cannot exhaust the mystery of the
smallest being in the universe, let alone
everything. It remains true, nevertheless, that all
things are the subject matter of philosophy, in the
sense that the philosopher takes as his angle of
vision or point of view the highest principles, the
ultimate causes, of all reality. Along with
common sense, then, philosophy seeks the
comprehensive, all-inclusive view of reality; it is
the knowledge of all things.
Philosophy is thus close to common sense and at
the same time different from it. It differs from
common sense because it holds its conclusions
scientifically (that is, intellectually,
rationally, and through causes), with a clarity and
depth inaccessible to common sense. It is close to
common sense because it shares the
universality of common sense and a common
insight into the fundamental structure of
reality.
We might even say that philosophy grows out of
common sense, and that common sense taken in its
strict meaning is a kind of foreshadowing, a dim
silhouette, of philosophy proper. Any
philosophy, therefore, that strays very far from
common sense is suspect. If it goes so far as
to contradict the basic certitudes of common sense,
then it is guilty of denying reality itself, and on
this point common sense can pass judgment on
it.
Keep in mind this point which is clearly stated
on our homepage regarding the position of classical
philosophic realism as interpreted by The Radical
Academy:
"The Radical Academy is an analysis of the human
condition as seen through the eyes of an authentic
philosophical realism fundamentally grounded on the
judgments of common sense, critically examined
and expanded."
Notice the phrase "common sense, critically
examined and expanded." This means that our common
sense judgments must be subjected to a critical
examination; sometimes our common sense beliefs
are wrong and can be corrected by reflection upon
them. (The exceptions here, of course, are the
spontaneous convictions regarding the existence of
objects -- including ourselves -- and the truth of
the self-evident principles.)
Furthermore, the "Contextual Realist" adds the
addendum "and expanded," because Contextual Realism
supports the "possibility" of multiple universes,
parallel universes, a multidimensional reality,
extrasensory perception, and so on, speculations
that go beyond common sense and may, in fact,
contradict common sense beliefs. This is one reason
why Contextual Realism as a philosophy is very
comfortable with the findings and speculations of
modern quantum physics, many of whose propositions
are obviously contrary to common sense, and also
with the findings and speculations of
parapsychology, many of whose propositions are
contrary to the "conventional wisdom."
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