intentions to God, for I mistrust
the feeble powers of my reason. I observe facts merely, and go no
farther. I only pretend to the character of the historian of _what is_."
"I can not make Nature an intelligent being who does nothing in vain,
who acts by the shortest mode, who does all for the best."[267] All the
supposed consorting of means to ends which has hitherto been regarded as
evidencing Intelligence is simply the result of "the elective affinities
of organic elements" and "the differentiation of organs" consequent
mainly upon exterior conditions. "_Functions are a result, not an end_.
The animal undergoes the kind of life that his organs impose, and
submits to the imperfections of his organization. The naturalist studies
the play of his apparatus, and if he has the right of admiring most of
its parts, he has likewise that of showing the imperfection of other
parts, and the practical uselessness of those which fulfill no
functions."[268] And it is further claimed that there are a great many
structures which are clearly useless; that is, they fulfill no purpose
at all. Thus there are monkeys, which have no thumbs for use, but only
rudimental thumb-bones hid beneath the skin; the wingless bird of New
Zealand (Apteryx) has wing-bones similarly developed, which serve no
purpose; young whalebone whales are born with teeth that never cut the
gums, and are afterwards absorbed; and some sheep have horns turned
about their ears which fulfill no end. And inasmuch as there are some
organisms in nature which serve no purpose of utility, it is argued
there is no design in nature; things are _used_ because there are
antecedent conditions favorable for _use_, but that use is not the _end_
for which the organ exists. The true naturalist will never say, "Birds
have wings given them _in order_ to fly;" he will rather say, "Birds fly
_because_ they have wings." The doctrine of final causes must,
therefore, be abandoned.
[Footnote 266: Whewell, "History of Inductive Sciences," vol. ii. p.
486.]
[Footnote 267: Id., ib., vol. ii. p. 490.]
[Footnote 268: Martin's "Organic Unity in Animals and Vegetables," in M.
Q. Review, January, 1863.]
It is hardly worth while to reply to the lame argument of Geoffroy,
which needs a "crutch" for its support. The very illustration,
undignified and irrelevant as it is, tells altogether against its
author. For, first, the crutch is certainly a _contrivance_ designed for
locomotion; secondly,
|