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.

...remember the dangers of the New Groupthink. If it's creativity you're after, ask your employees to solve problems alone before sharing their ideas. If you want the wisdom of the crowd, gather it electronically, or in writing, and make sure people can't see each other's ideas until everyone has had a chance to contribute.

(Finland is a famously introverted nation. Finnish joke: How can you tell if a Finn likes you? He's staring at your shoes instead of his own.)

I get a lot of letters from introverts asking how they can meet people. The key is to make sure that you are doing things you enjoy.

Many people believe that introversion is about being antisocial, and that's really a misperception. Because actually it's just that introverts are differently social. So they would prefer to have a glass of wine with a close friend as opposed to going to a loud party full of strangers.

I worry that there are people who are put in positions of authority because they're good talkers, but they don't have good ideas. It's so easy to confuse schmoozing ability with talent. Someone seems like a good presenter, easy to get along with, and those traits are rewarded. Well, why is that? They're valuable traits, but we put too much of a premium on presenting and not enough on substance and critical thinking.

We know from myths and fairy tales that there are many different kinds of powers in this world. One child is given a light saber, another a wizard's education. The trick is not to amass all the different kinds of power, but to use well the kind you've been granted.