“Faces may be hard to read because humans are complex social animals that have learned to suppress the display of emotions for various reasons. It is often inappropriate to show negative emotions like hatred and contempt in public, so people go about wearing socially acceptable faces rather like masks.”

“A person never knows their own true face. Everybody thinks that the phoney, posed social mask they wear is their real face.”

“Reason without emotion is often a mask for cruelty; emotion without reason can allow people to excuse all sorts of excesses.”

“One noteworthy study suggests that people who suppress negative emotions tend to leak those emotions later in unexpected ways. The psychologist Judith Grob asked people to hide their emotions when she showed them disgusting images. She even had them hold pens in their mouths to prevent them from frowning. She found that this group reported feeling less disgusted by the pictures than did those who'd been allowed to react naturally. Later, however, the people who hid their emotions suffered side effects. Their memory was impaired, and the negative emotions they'd suppressed seemed to color their outlook. When Grob had them fill in the missing letter to the word "gr_ss", for example, they were more likely than others to offer "gross" rather than "grass". "People who tend to [suppress their negative emotions] regularly," concludes Grob, "might start to see their world in a more negative light." p. 223”

“Aggressive and hard-charging women violate unwritten rules about acceptable social conduct. Men are continually applauded for being ambitious and powerful and successful, but women who display these same traits often pay a social penalty. Female accomplishments come at a cost.”

“Emotion without reason lets people walk all over you; reason without emotion is a mask for cruelty.”