Full Idea
Emotions can be analysed by direction, scope/focus, object, criteria, status, evaluations, responsibility, intersubjectivity, distance, mythology, desire, power, strategy.
Gist of Idea
Emotions can be analysed under fifteen headings
Source
Robert C. Solomon (The Passions [1976], 8)
Book Reference
Solomon,Robert C.: 'The Passions (1993 ed)' [Hackett 1993], p.228
A Reaction
These are the headings Solomon actually applies in his breakdown of most of the main emotions. See his book for explanations of each of them. If people say philosophy makes no progress, I'd at least point to helpful thinking of this kind.