recognition of the necessary presence of a negative factor in
the constitution of the world. Everything in the world--be it a
religious cult or a logical category, a human passion or a scientific
law--is, so Hegel holds, the result of a process which involves the
overcoming of a negative element. Without such an element to overcome,
the world would indeed be an inert and irrational affair. That any
rational and worthy activity entails the encounter of opposition and the
removal of obstacles is an observation commonplace enough. A
preestablished harmony of foreseen happy issues--a fool's paradise--is
scarcely our ideal of a rational world. Just as a game is not worth
playing when its result is predetermined by the great inferiority of the
opponent, so life without something negative to overcome loses its zest.
But the process of overcoming is not anything contingent; it operates
according to a uniform and universal law. And this law constitutes
Hegel's most central doctrine--his doctrine of Evolution.

In order to bring this doctrine into better relief, it may be well to
contrast it superficially with the Darwinian theory of transformation.
In general, Hegel's doctrine is a concept of value, Darwin's is not.
What Darwinians mean by evolution is not an unfolding of the past, a
progressive development of a hierarchy of phases, in which the later is
superior and organically related to the earlier. No sufficient criterion
is provided by them for evaluating the various stages in the course of
an evolutionary process. The biologist's world would probably have been
just as rational if the famous ape-like progenitor of man had chanced to
become his offspring-assuming an original environment favorable for such
transformation. Some criterion besides the mere external and accidental
"struggle for existence" and "survival of the fittest" must be furnished
to account for a progressive evolution. Does the phrase "survival of the
fittest" say much more than that those who happen to survive _are_ the
fittest, or that their survival proves their fitness? But that survival
itself is valuable: that it is better to be alive than dead; that
existence has a value other than itself; that what comes later in the
history of the race or of the universe is an advance over what went
before-that, in a word, the world is subject to an immanent development,
only a comprehensive and systematic philosophy can attempt to show.

The task of Hegel's whole