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ARNOLD BRECHT'S POLITICAL THEORY REVISITED Political ...

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176<br />

THE <strong>POLITICAL</strong> SCIENCE REVIEWER<br />

human freedom of will and methodological problems.<br />

Brecht begins his discussion of the eleventh and final "scientific<br />

step," non-acceptance, by indicating that, while the account of the<br />

first ten "steps" has provided a "positive" statement of proper Scientific<br />

Method, he will now present the "negative" side-i.e., what it<br />

is especially that Scientific Method rejects or repudiates. Summarily<br />

stated, "Scientific Method eliminates all propositions that have been<br />

arrived at otherwise or have been invalidated through it, as nonscientific<br />

in its terms" (98). Most importantly, "[i]t shuts the front door<br />

of science to (1) a-priori judgments, (2) metaphysical propositions,<br />

and (3) absolute value judgments. These three are only admitted, if<br />

at all, through the back door of `working hypotheses' and ' assumptions'."<br />

He characterizes both "metaphysical propositions" and "absolute<br />

value judgments " as " special types of a-priori propositions. "<br />

His subsequent discussion does not address each of these specifically,<br />

but rather treats of a-priori reasoning in general, reserving the<br />

"special types" for particular examination later in the book.<br />

Brecht begins his general treatment by distinguishing four different<br />

usages of the term "a-priori": (a) "the most firmly established<br />

classical sense" which refers to "notions, propositions, or postulates<br />

that are considered true or necessary , irrespective of experience or<br />

anterior to it"; (b) a more "modern" sense which refers to "all notions,<br />

propositions or postulates that are extraneous to the system or<br />

method of thought under which the inquiry is conducted," or what<br />

he terms "the methodologically repudiated a-priori"; (3) a closely<br />

related modern sense associated with methodological considerations,<br />

which refers to certain notions, propositions or postulates<br />

which "cannot be reached or verified" through the preferred<br />

"method" and which "underlie the method's operations"-termed<br />

"the immanent methodological a priori"; and (4) a sense, employed<br />

by "some writers," which refers to "all things that are `given' or<br />

simply there a priori; i.e., the things that constitute, so to speak, the<br />

raw material of scientific research"-or what he terms "the a priori<br />

of givenness" (100f.). What is immediately noticeable about Brecht's<br />

account of these four "senses" is that they are not distinct. The first<br />

or classic sense appears silently in the definition of the fourth. And<br />

the second and third senses merely add an apparently arbitrary<br />

methodological criterion as a principle of selection or standard for<br />

choosing to accept some notions, propositions, or postulates as true<br />

"irrespective of experience or anterior to it" while rejecting others.

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