of this anger
reaction.

A further development of the feeling of sympathy is that of duty.
Every feeling of love or sympathy urges those who feel it to do
certain things which will benefit the object of that love. A mother
will feed her young, bed them down comfortably, caress them; a father
will bring nourishment to the mother and her brood, and protect them
against foes. All these actions, not performed to benefit the creature
itself, but to help its beloved mate, represent exertion, trouble, the
overcoming of danger, and lead to a struggle between egoism and the
feeling of sympathy. Out of this struggle is born a third feeling,
that of responsibility and conscience. Thus the elements of the human
social feelings are already quite pronounced in the case of many
animals, including those of love as well as sex.

In the human animal, speaking in general, these feelings of sympathy
(love) and duty are strongly developed in the family connection; that
is, they are developed with special strength in those who are most
intimately united in sex life, in husband and wife and in children.
Consequently the feelings of sympathy or love which extend to larger
communal groups, such as more distant family connections, the tribe,
the community, those speaking the same tongue, the nation, are
relatively far weaker. Weakest of all, in all probability, is that
general human feeling which sees a brother in every other human being
and is conscious of the social duties owed him.

As regards man and wife, the relation of the actual sex instinct to
love is often a very complicated one. In the case of man the sex
feeling may, and frequently does exist independent of love in the
higher sense; in the case of woman it is quite certain that love
occurs far less seldom unaccompanied by the sex inclination. It is
also quite possible for love to develop before the development of the
sex feeling, and this often, in married life, leads to the happiest
relationships.

The mutual adoration of two individuals, husband and wife, often
degenerates into a species of egoistic enmity toward the remainder of
the world. And this, in turn, in many cases reacts unfavorably upon
the love the two feel for each other. Human solidarity, especially in
this day, is already too great not to revenge itself upon the
egotistical character of so exclusive a love. The real ideal of sex in
love might be expressed as follows: A man and a woman should be
induced to unite