lse is sharable, that is not. It is the very stuff of our
attitudes, of our acceptances and rejections of the world and its
contents, the very essence of the relations we bear to these. That these
relations shall be identical for any two human beings requires that the
two shall be identical: two persons cannot hold the same relation to the
same or different objects any more than two objects can occupy
absolutely the same space at the same time. Hence, all our differences
and disagreements. However socially-minded we may be, mere numerical
diversity compels us to act as separate centers, to value things with
reference to separate interests, to orient our worlds severally, and
with ourselves as centers. This orienting is the relating of the
environment to our interests, the establishment of our worlds of
appreciation, the creation of our orders of value. However much these
cross and interpenetrate, coincide they never can.

Our interests, furthermore, are possibly as numerous as our reflex arcs.
Each may, and most do, constitute distinct and independent valuations of
their objects, to which they respond, and each, with these objects,
remains an irreducible system. But reflex arcs and interests do not act
alone. They act like armies; they compound and are integrated, and when
so integrated their valuations fuse and constitute the more complex and
massive feelings, pleasures and pains, the emotions of anger, of fear,
of love; the sentiments of respect, of admiration, of sympathy. They
remain, through all degrees of complexity, appraisements of the
environment, reactions upon it, behavior toward it, as subject to
empirical examination by the psychologist as the environment itself by
the physicist.

With a difference, however, a fundamental difference. When you have an
emotion you cannot yourself examine it. Effectively as the mind may work
in sections, it cannot with sanity be divided against itself nor long
remain so. A feeling cannot be had and examined in the same time. And
though the investigator who studies the nature of red does not become
red, the investigator who studies the actual emotion of anger does tend
to become angry. Emotion is infectious; anger begets anger; fear, fear;
love, love; hate, hate; actions, relations, attitudes, when actual,
integrate and fuse; as feelings, they constitute the sense of behavior,
varying according to a changing and unstable equilibrium of factors
_within_ the organism; they are a