It is inconceivable that a judicious observer from another solar system
would see in our species -- which has tended to be cruel, destructive,
wasteful, and irrational -- the crown and apex of cosmic evolution.
Viewing us as the culmination of *anything* is grotesque; viewing us
as a transitional species makes more sense -- and gives us more hope.
-- Betty McCollister, "Our Transitional Species",
-- Free Inquiry magazine, Vol. 8, No. 1
The agreement of so many kinds of animals in a certain common structure
which seems to be fundamental not only in their skeletons, but also
in the arrangement of the other parts - so that a wonderfully simple
typical form, by the shortening and lengthening of some parts, and
by the suppression and development of others, might be able to produce
an immense variety of species - allows a ray of hope, however faint,
to enter our minds, that here perhaps some result may be obtained,
by the application of the principle of the mechanism of nature (without
which there can be no natural science in general)....