oes not
harmonize with our train of thought or thwarts or impedes our interests
and purposes, it is unpleasant.

=Function of Pleasure and Pain.=--From what has been noted concerning
co-ordination between the adaptation of the organism to impression and
the quality of the accompanying feeling, it is evident that pleasure and
pain each have their part to play in promoting the ultimate good of the
individual. Pain is beneficial, because it lets us know that there is
some misadjustment to our environment, and thereby warns us to remove or
cease doing what is proving injurious. In this connection, it may be
noted that no disease is so dangerous as one that fails to make its
presence known through pain. Pleasure also is valuable in so far as it
results from perfect adaptation to a perfect environment, since it
induces the individual to continue beneficial acts. It must be
remembered, however, that so far as heredity or education has adapted
our organism to improper stimuli, pleasure is no proof that the good of
the organism is being advanced. In such cases, redemption can come to
the fallen world only through suffering.

=Feeling and Knowing.=--Since the intensity of a feeling state is
conditioned by the amount of resistance, an intense state of feeling is
likely to be accompanied by a lowering of intellectual activity. For
this reason excessive hunger, heat or cold, intense joy, anger or
sorrow, are usually antagonistic to intellectual work. The explanation
for this seems to be that so much of our nervous energy is consumed in
overcoming the resistance in the centres affected, that little is left
for ordinary intellectual processes. This does not, of course, imply
that no one can do intellectual work under such conditions; nor that the
intellectual man is always devoid of strong feelings, although such is
often the case. Occasionally, however, a man is so strongly endowed with
nervous energy, that even after overcoming the resistance being
encountered, he still has a residue of energy to devote to ordinary
intellectual processes.

=Feeling and Will.=--Although, as pointed out in the last paragraph,
there is a certain antagonism between knowing and feeling, it has also
been seen that every experience has its knowing as well as its feeling
side. Because of this co-ordination, the qualities of our feeling states
become known to us, or are able to be distinguished by the mind. As a
result of this recognition of a difference