In the first study, Grant and his colleagues analyzed data from one of the five biggest pizza chains in the United States. They discovered that the weekly profits of the stores managed by extroverts were 16 percent higher than the profits of those led by introverts—but only when the employees were passive types who tended to do their job without exercising initiative. Introverted leaders had the exact opposite results. When they worked with employees who actively tried to improve work procedures, their stores outperformed those led by extroverts by more than 14 percent.

Opposites attract, and I think temperament is so fundamental that you end up craving someone of the opposite temperament to complete you.

I prefer listening to talking, reading to socializing... I like to think before I speak (softly).

Evangelicalism has taken the Extrovert Ideal to its logical extreme...If you don't love Jesus out loud, then it must not be real love. It's not enough to forge your own spiritual connection to the divine; it must be displayed publicly.

In the first study, Grant and his colleagues analyzed data from one of the five biggest pizza chains in the United States. They discovered that the weekly profits of the stores managed by extroverts were 16 percent higher than the profits of those led by introverts—but only when the employees were passive types who tended to do their job without exercising initiative. Introverted leaders had the exact opposite results. When they worked with employees who actively tried to improve work procedures, their stores outperformed those led by extroverts by more than 14 percent.

Women were also urged to work on a mysterious quality called 'fascination.' Coming of age in the 1920's was a competitive business.

It's not that there is no small talk...It's that it comes not at the beginning of conversations but at the end...Sensitive people...'enjoy small talk only after they've gone deep' says Strickland. 'When sensitive people are in environments that nurture their authenticity, they laugh and chitchat just as much as anyone else.