those that, until now, have been able to reveal themselves: social
conditions did not allow the others to develop. Precisely so with the
faculties of the female sex, a sex that for centuries has been held
under, hampered and crippled, far worse than any other subject beings.
We have absolutely no measure to-day by which to gauge the fullness of
mental powers and faculties that will develop among men and women so
soon as they shall be able to unfold amid natural conditions.

It is with mankind as in the vegetable kingdom. Millions of valuable
seeds never reach development because the ground on which they fall is
unfavorable, or is taken up by weeds that rob the young and better plant
of air, light and nourishment. The same laws of Nature hold good in
human life. If a gardener or planter sought to maintain with regard to a
given plant that it could not grow, although he made no trial, perhaps
even hindered its growth by wrong treatment, such a man would be
pronounced a fool by all his intelligent neighbors. Nor would he fare
any better if he declined to cross one of his female domestic animals
with, a male of higher breed, to the end of producing a better animal.

There is no peasant in Germany to-day so ignorant as not to understand
the advantage of such treatment of his trees or animals--provided always
his means allow him to introduce the better method. Only with regard to
human beings do even men of learning deny the force of that which with
regard to all other matters, they consider an established law. And yet
every one, even without being a naturalist, can make instructive
observations in life. Whence comes it that the children of peasants
differ from city children? It comes from the difference in their
conditions of life and education.

The one-sidedness, inherent in the education for one calling, stamps man
with a peculiar character. A clergyman or a schoolmaster is generally
and easily recognized by his carriage and mien; likewise an officer,
even when in civilian dress. A shoe maker is easily told from a tailor,
a joiner from a locksmith. Twin brothers, who closely resembled each
other in youth, show in later years marked differences if their
occupations are different, if one had hard manual work, for instance, as
a smith, the other the study of philosophy for his duty. Heredity, on
one side, adaptation on the other, play in the development of man, as
well as of animals, a decisive _role_. Indeed, man is the m