A System of Logic: Ratiocinative and Inductive, 7th Edition, Vol. I
John Stuart Mill · en
This first example of a train of reasoning is still extremely simple,
the series consisting of only two syllogisms. The following is somewhat
more complicated:--No government, which earnestly seeks the good of its
subjects, is likely to be overthrown; some particular government
earnestly seeks the good of its subjects, therefore it is not likely to
be overthrown. The major premise in this argument we shall suppose not
to be derived from considerations _à priori_, but to be a generalization
from history, which, whether correct or erroneous, must have been
founded on observation of governments concerning whose desire of the
good of their subjects there was no doubt. It has been found, or thought
to be found, that these were not easily overthrown, and it has been
deemed that those instances warranted an extension of the same predicate
to any and every government which resembles them in the attribute of
desiring earnestly the good of its subjects. But _does_ the government
in question thus resemble them? This may be debated _pro_ and _con_ by
many arguments, and must, in any case, be proved by another induction;
for we cannot directly observe the sentiments and desires of the persons
who carry on the government. To prove the minor, therefore, we require
an argument in this form: Every government which acts in a certain
manner, desires the good of its subjects; the supposed government acts
in that particular manner, therefore it desires the good of its
subjects. But is it true that the government acts in the manner
supposed? This minor also may require proof; still another induction, as
thus:--What is asserted by intelligent and disinterested witnesses, may
be believed to be true; that the government acts in this manner, is
asserted by such witnesses, therefore it may be believed to be true. The
argument hence consists of three steps. Having the evidence of our
senses that the case of the government under consideration resembles a
number of former cases, in the circumstance of having something asserted
respecting it by intelligent and disinterested witnesses, we infer,
first, that, as in those former instances, so in this instance, the
assertion is true. Secondly, what was asserted of the government being
that it acts in a particular manner, and other governments or persons
having been observed to act in the same manner, the government in
question is brought into known resemblance with those other governments
or persons; and since they were known to desire the good of the people,
it is thereupon, by a second induction, inferred that the particular
government spoken of, desires the good of the people. This brings that
government into known resemblance with the other governments which were
thought likely to escape revolution, and thence, by a third induction,
it is concluded that this particular government is also likely to
escape. This is still reasoning from particulars to particulars, but we