continue to plunder one another and call it exchange, to murder
one another en masse, and call it nationalism, to oppress one
another and call it statesmanship?

Because in every new generation the impulses supposed to have
been rooted out by discipline in the child, break forth again,
when the struggle for existence--of the individual in society,
of the society in the life of the state--begins. These passions
are not transformed by the prevalent education of the day, but
only repressed. Practically this is the reason why not a single
savage passion has been overcome in humanity. Perhaps
man-eating may be mentioned as an exception. But what is told
of European ship companies or Siberian prisoners shows that
even this impulse, under conditions favourable to it, may be
revived, although in the majority of people a deep physical
antipathy to man-eating is innate. Conscious incest, despite
similar deviations, must also be physically contrary to the
majority, and in a number of women, modesty--the unity between
body and soul in relation to love--is an incontestable
provision of nature. So too a minority would find it physically
impossible to murder or steal. With this list I have exhausted
everything which mankind, since its conscious history began,
has really so intimately acquired that the achievement is
passed on in its flesh and blood. Only this kind of conquest
can really stand up against temptation in every form.

A deep physiological truth is hidden in the use of language
when one speaks of unchained passions; the passions, under the
prevailing system of education, are really only beasts of prey
imprisoned in cages.