"This Theory has Ten Postulates:
1 The concept of emotion is applicable to all evolutionary levels and applies to all animals including humans.
2 Emotions have an evolutionary history and have evolved various forms of expression in different species.
3Emotions served an adaptive role in helping organisms deal with key survival issues posed by the environment.
4 Despite different forms of expression of emotions in different species, there are certain common elements, or prototype patterns, that can be identified.
5 There is a small number of basic, primary, or prototype emotions.
6 All other emotions are mixed or derivative states; that is, they occur as combinations, mixtures, or compounds of the primary emotions.
7 Primary emotions are hypothetical constructs or idealized states whose properties and characteristics can only be inferred from various kinds of evidence.
8 Primary emotions can be conceptualized in terms of pairs of polar opposites.
9 All emotions vary in their degree of similarity to one another.
10 Each emotion can exist in varying degrees of intensity or levels of arousal."
What an inspiring concept...