The excerpt represents the core issue or deciding factor on which you must meditate, and is drawn from The Psychology of Revolution by Gustave le Bon:|
But although this explanation is applicable to the acceleration
of a sentiment subjected to a constant exciting cause, it
does not tell us why the effects of acceleration finally and
suddenly cease. Such a fall is only comprehensible if we bring
in physiological factors--that is, if we remember that pleasure,
like pain, cannot exceed certain limits, and that all sensations,
when too violent, result in the paralysis of sensation. Our
organism can only support a certain maximum of joy, pain, or
effort, and it cannot support that maximum for long together.
The hand which grasps a dynamometer soon exhausts its effort, and
is obliged suddenly to let go.