writeworld:

Robert Plutchik created a wheel of emotions in 1980 which consisted of 8 basic emotions and 8 advanced emotions each composed of 2 basic ones.

Eight Basic Emotions

Joy Sadness Trust Disgust Fear Anger Surprise Anticipation

Basic Emotion Basic Opposite

Joy Sadness Trust Disgust Fear Anger Surprise Anticipation

Combination of Basic Emotions (A + B) = Advanced Human Emotions (Opposite Advanced Emotion in Parentheses)

Anticipation + Joy = Optimism (Disapproval) Joy + Trust = Love...