... Over the years, theorists have moved beyond the assumption of a single, common positive emotion and suggested a number of discrete positive emotions such as joy and interest (Tomkins, 1962;Izard, 1977); amusement, contentment, excitement, pride in achievement, relief, satisfaction, sensory pleasure (Ekman, 1999); joy, interest, contentment, pride, and love (Fredrickson, 2001); seeking, lust, care, and play (Panksepp & Watt, 2011); amusement, ecstasy, excitement, fiero, happiness, interest, rejoicing, relief, naches, schadenfreude, sensory pleasures, and wonder (Ekman, & Cordaro, 2011); enjoyment (playing), interest (exploration), love (attachment), and relief/contentment (soothing) (Levenson, 2011); amusement, awe, gratitude, hope, inspiration, interest, joy, love, pride and serenity (contentment) (Fredrickson, 2013); anticipatory and consummatory love, amusement, compassion, flow, gratitude, interest, joy, pride, and surprise (Kreibig, 2014); amusement, attachment love, awe, contentment, enthusiasm, gratitude, liking/pleasure, nurturant love, pride, and sexual desire . ...