" According to the “universality studies” conducted by psychologists Paul Ekman, Carroll Izard, and Friesen (1969-1972), the words
Happiness. Fear. Anger. Sadness. Contempt. Surprise. Disgust.
describe the natural expressions of emotion shared by the entire human race. "

― Susan C. Young , The Art of Body Language: 8 Ways to Optimize Non-Verbal Communication for Positive Impact (The Art of First Impressions for Positive Impact, #3)