able to
its development.

=Causes of Jealousy=

The essential factor in jealousy is _fear_. Fear of losing the beloved
object, fear of losing the person who provides you with sexual
satisfaction, or the mere economic fear of losing a material provider.
The latter kind of fear is, of course, more often manifested--even
though unconsciously--in women. Women who have no love for their
husbands are nevertheless often fiercely jealous, because consciously
or unconsciously they are afraid that their husbands may desert them
for other women, and that they may thus find themselves in a
precarious economic condition.

Another factor in jealousy is wounded _vanity_. We do not like to feel
that somebody is considered superior to us. This feeling of wounded
vanity is present in other varieties of envy or rivalry. A person who
loses in a race or gets a lower mark in his examination than his rival
may be filled with a feeling of envy and hatred almost equal in
intensity to, though never as painful as, sexual jealousy.

Another factor in jealousy is _anger_ over loss of what we consider
our property. In our present social order the man considers his wife
his absolute property, and so does the wife consider her husband. And
there is anger that a stranger should dare to rob us or make use of
our property, just as there would be anger if a thief came and robbed
us of a valuable material possession. This anger or rage part of
jealousy is not a sign of love. It is very far from being so. Because
it manifests itself also in men and women who have not a particle of
love for their spouses; it manifests itself in spouses who have
nothing but hatred and loathing for their partners.

Another important factor is _pain_, pain that the person we love has
ceased to love us. When we love a person and our love is not
reciprocated, we feel pain which may rise to the degree of agony, even
when there is no rival in the field. But when a person who loved us
has ceased to love us--or we imagine so--and has transferred the love
to another person that pain is so much the greater.

I will digress here for a moment to state that the fear that a person
has ceased to love us because he loves somebody else is often
groundless. It is based upon the erroneous and vicious idea that a man
cannot possibly love two women at the same time, or that a woman
cannot love two men at the same time. Psychologists, particularly
those who have made a special study of s