Capitolo 30
their present forms. The theory of the evolution says that men they didn't do
you enter to the sudden one existence, but it is reported to lower animals
and to plants, directly or indirectly. The germ of the life had
it passed through the various stages of form physics before you/he/she could appear
as a man. That branch of science that has called Embryology has it tried
the fact that "man is the epitome of the whole creation." It says
what the human body in front of its birth passes through everything the different
stages of the animal kingdom--as the polyp, fish, repent, dog,
you imitate, and finally, man. If we remember that nature is always
constant, that its laws are uniform and that anything exists in the
microcosm also exists in the macrocosm, and then nature of study, us
you find that all the germs of life that it exists in the universe are
limits to pass through stages that resemble to first the embryonic types
they can appear in the form of man.
In to explain the theory of the evolution, science says, that are two
principal factors in the trial of the evolution; the first one is the
tendency to vary that it exists in all the living forms if the vegetable
or animal; the second is the tendency of environment to influence that
variation, favorably or unfavorably. Without the first one,
the evolution of some kind would absolutely be impossible. But the cause of
that innate tendency to still vary is unknown to science. On the
according to the law of natural selection it depends. The variation has to be
suited for the favorable conditions of the life; accordingly or the germ
of the life appropriate environments will select or they will be varied in order to
is all right the surrounding conditions, if theirs are unfavorable. But the
agent of this selective trial is the struggle for existence that
it is a no the important factor. This way the evolution depends these three
laws: Tendency to vary, or variation, the natural selection and struggle
for existence. Science tries to explain through these three laws the
physical, mental, intellectual, moral and spiritual evolution of