Wednesday, December 21, 2011

...In the defense of the usage of the terminology of pure logic, via the critique of pure reason from Kant...!

...In the defense of the usage of the terminology of "pure logic", via the "critique of pure reason" from Kant...!



- 1781

Hence also the expression pure
reason, is used as a "name", title,
to be under of. So pure logic is
also a name, title, of the logic
used, and of the actual Book. A
part from the completeness of scope
used of logic, with no limitations
to the fields in Science, and in the
pursuit of purifying our reason and
development of capability in analysis
and to shield from errors and wrong

Please refer to the reference
to Kant included bellow.




by Immanuel Kant

translated by J. M. D. Meiklejohn



VII. Idea and Division of a Particular Science, under the

Name of a Critique of Pure Reason.

From all that has been said, there results the idea of a
particular science, which may be called the Critique of Pure Reason.
For reason is the faculty which furnishes us with the principles of
knowledge a priori. Hence, pure reason is the faculty which contains
the principles of cognizing anything absolutely a priori. An organon
of pure reason would be a compendium of those principles according
to which alone all pure cognitions a priori can be obtained. The
completely extended application of such an organon would afford us a
system of pure reason. As this, however, is demanding a great deal,
and it is yet doubtful whether any extension of our knowledge be
here possible, or, if so, in what cases; we can regard a science of
the mere criticism of pure reason, its sources and limits, as the
propaedeutic to a system of pure reason. Such a science must not be
called a doctrine, but only a critique of pure reason; and its use, in
regard to speculation, would be only negative, not to enlarge the
bounds of, but to purify, our reason, and to shield it against
error- which alone is no little gain. I apply the term
transcendental to all knowledge which is not so much occupied with
objects as with the mode of our cognition of these objects, so far
as this mode of cognition is possible a priori. A system of such
conceptions would be called transcendental philosophy. But this,
again, is still beyond the bounds of our present essay. For as such
a science must contain a complete exposition not only of our
synthetical a priori, but of our analytical a priori knowledge, it
is of too wide a range for our present purpose, because we do not
require to carry our analysis any farther than is necessary to
understand, in their full extent, the principles of synthesis a
priori, with which alone we have to do. This investigation, which we
cannot properly call a doctrine, but only a transcendental critique,
because it aims not at the enlargement, but at the correction and
guidance, of our knowledge, and is to serve as a touchstone of the
worth or worthlessness of all knowledge a priori, is the sole object
of our present essay. Such a critique is consequently, as far as
possible, a preparation for an organon; and if this new organon should
be found to fail, at least for a canon of pure reason, according to
which the complete system of the philosophy of pure reason, whether it
extend or limit the bounds of that reason, might one day be set
forth both analytically and synthetically. For that this is
possible, nay, that such a system is not of so great extent as to
preclude the hope of its ever being completed, is evident. For we have
not here to do with the nature of outward objects, which is
infinite, but solely with the mind, which judges of the nature of
objects, and, again, with the mind only in respect of its cognition
a priori. And the object of our investigations, as it is not to be
sought without, but, altogether within, ourselves, cannot remain
concealed, and in all probability is limited enough to be completely
surveyed and fairly estimated, according to its worth or
worthlessness. Still less let the reader here expect a critique of
books and systems of pure reason; our present object is exclusively
a critique of the faculty of pure reason itself. Only when we make
this critique our foundation, do we possess a pure touchstone for
estimating the philosophical value of ancient and modern writings on
this subject; and without this criterion, the incompetent historian or
judge decides upon and corrects the groundless assertions of others
with his own, which have themselves just as little foundation.

Transcendental philosophy is the idea of a science, for which the
Critique of Pure Reason must sketch the whole plan
architectonically, that is, from principles, with a full guarantee for
the validity and stability of all the parts which enter into the
building. It is the system of all the principles of pure reason. If
this Critique itself does not assume the title of transcendental
philosophy, it is only because, to be a complete system, it ought to
contain a full analysis of all human knowledge a priori. Our
critique must, indeed, lay before us a complete enumeration of all the
radical conceptions which constitute the said pure knowledge. But from
the complete analysis of these conceptions themselves, as also from
a complete investigation of those derived from them, it abstains
with reason; partly because it would be deviating from the end in view
to occupy itself with this analysis, since this process is not
attended with the difficulty and insecurity to be found in the
synthesis, to which our critique is entirely devoted, and partly
because it would be inconsistent with the unity of our plan to
burden this essay with the vindication of the completeness of such
an analysis and deduction, with which, after all, we have at present
nothing to do. This completeness of the analysis of these radical
conceptions, as well as of the deduction from the conceptions a priori
which may be given by the analysis, we can, however, easily attain,
provided only that we are in possession of all these radical
conceptions, which are to serve as principles of the synthesis, and
that in respect of this main purpose nothing is wanting.

To the Critique of Pure Reason, therefore, belongs all that
constitutes transcendental philosophy; and it is the complete idea
of transcendental philosophy, but still not the science itself;
because it only proceeds so far with the analysis as is necessary to
the power of judging completely of our synthetical knowledge a priori.

The principal thing we must attend to, in the division of the
parts of a science like this, is that no conceptions must enter it
which contain aught empirical; in other words, that the knowledge a
priori must be completely pure. Hence, although the highest principles
and fundamental conceptions of morality are certainly cognitions a
priori, yet they do not belong to transcendental philosophy;
because, though they certainly do not lay the conceptions of pain,
pleasure, desires, inclinations, etc. (which are all of empirical
origin), at the foundation of its precepts, yet still into the
conception of duty- as an obstacle to be overcome, or as an incitement
which should not be made into a motive- these empirical conceptions
must necessarily enter, in the construction of a system of pure
morality. Transcendental philosophy is consequently a philosophy of
the pure and merely speculative reason. For all that is practical,
so far as it contains motives, relates to feelings, and these belong
to empirical sources of cognition.

If we wish to divide this science from the universal point of view
of a science in general, it ought to comprehend, first, a Doctrine
of the Elements, and, secondly, a Doctrine of the Method of pure
reason. Each of these main divisions will have its subdivisions, the
separate reasons for which we cannot here particularize. Only so
much seems necessary, by way of introduction of premonition, that
there are two sources of human knowledge (which probably spring from a
common, but to us unknown root), namely, sense and understanding. By
the former, objects are given to us; by the latter, thought. So far as
the faculty of sense may contain representations a priori, which
form the conditions under which objects are given, in so far it
belongs to transcendental philosophy. The transcendental doctrine of
sense must form the first part of our science of elements, because the
conditions under which alone the objects of human knowledge are
given must precede those under which they are thought.




SS I. Introductory.

In whatsoever mode, or by whatsoever means, our knowledge may relate
to objects, it is at least quite clear that the only manner in which
it immediately relates to them is by means of an intuition. To this as
the indispensable groundwork, all thought points. But an intuition can
take place only in so far as the object is given to us. This, again,
is only possible, to man at least, on condition that the object affect
the mind in a certain manner. The capacity for receiving
representations (receptivity) through the mode in which we are
affected by objects, objects, is called sensibility. By means of
sensibility, therefore, objects are given to us, and it alone
furnishes us with intuitions; by the understanding they are thought,
and from it arise conceptions. But an thought must directly, or
indirectly, by means of certain signs, relate ultimately to
intuitions; consequently, with us, to sensibility, because in no other
way can an object be given to us.

The effect of an object upon the faculty of representation, so far
as we are affected by the said object, is sensation. That sort of
intuition which relates to an object by means of sensation is called
an empirical intuition. The undetermined object of an empirical
intuition is called phenomenon. That which in the phenomenon
corresponds to the sensation, I term its matter; but that which
effects that the content of the phenomenon can be arranged under
certain relations, I call its form. But that in which our sensations
are merely arranged, and by which they are susceptible of assuming a
certain form, cannot be itself sensation. It is, then, the matter of
all phenomena that is given to us a posteriori; the form must lie
ready a priori for them in the mind, and consequently can be
regarded separately from all sensation.

I call all representations pure, in the transcendental meaning of
the word, wherein nothing is met with that belongs to sensation. And
accordingly we find existing in the mind a priori, the pure form of
sensuous intuitions in general, in which all the manifold content of
the phenomenal world is arranged and viewed under certain relations.
This pure form of sensibility I shall call pure intuition. Thus, if
I take away from our representation of a body all that the
understanding thinks as belonging to it, as substance, force,
divisibility, etc., and also whatever belongs to sensation, as
impenetrability, hardness, colour, etc.; yet there is still
something left us from this empirical intuition, namely, extension and
shape. These belong to pure intuition, which exists a priori in the
mind, as a mere form of sensibility, and without any real object of
the senses or any sensation.

The science of all the principles of sensibility a priori, I call
transcendental aesthetic.* There must, then, be such a science forming
the first part of the transcendental doctrine of elements, in
contradistinction to that part which contains the principles of pure
thought, and which is called transcendental logic.

*The Germans are the only people who at present use this word to
indicate what others call the critique of taste. At the foundation
of this term lies the disappointed hope, which the eminent analyst,
Baumgarten, conceived, of subjecting the criticism of the beautiful to
principles of reason, and so of elevating its rules into a science.
But his endeavours were vain. For the said rules or criteria are, in
respect to their chief sources, merely empirical, consequently never
can serve as determinate laws a priori, by which our judgement in
matters of taste is to be directed. It is rather our judgement which
forms the proper test as to the correctness of the principles. On this
account it is advisable to give up the use of the term as
designating the critique of taste, and to apply it solely to that
doctrine, which is true science- the science of the laws of
sensibility- and thus come nearer to the language and the sense of the
ancients in their well-known division of the objects of cognition into
aiotheta kai noeta, or to share it with speculative philosophy, and
employ it partly in a transcendental, partly in a psychological

In the science of transcendental aesthetic accordingly, we shall
first isolate sensibility or the sensuous faculty, by separating
from it all that is annexed to its perceptions by the conceptions of
understanding, so that nothing be left but empirical intuition. In the
next place we shall take away from this intuition all that belongs
to sensation, so that nothing may remain but pure intuition, and the
mere form of phenomena, which is all that the sensibility can afford a
priori. From this investigation it will be found that there are two
pure forms of sensuous intuition, as principles of knowledge a priori,
namely, space and time. To the consideration of these we shall now

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