THE DIFFERENT FEELING QUALITIES.--At least six (some writers say even
more) distinct and qualitatively different feeling states are easily
distinguished. These are: _pleasure_, _pain_; _desire_, _repugnance_;
_interest_, _apathy._ Pleasure and pain, and desire and repugnance, are
directly opposite or antagonistic feelings. Interest and apathy are not
opposites in a similar way, since apathy is but the absence of interest,
and not its antagonist. In place of the terms pleasure and pain, the
_pleasant_ and the _unpleasant_, or the _agreeable_ and the
_disagreeable_, are often used. _Aversion_ is frequently employed as a
synonym for repugnance.
