America had shifted from what influential cultural historian Warren Susman called a culture of character to a culture of personality, and opened up a Pandora's box of personal anxieties of which we would never recover.

The secret to life is to put yourself in the right lighting.

Introverts need to trust their gut and share their ideas as powerfully as they can.

The pressure to entertain, to sell ourselves, and never to be visibly anxious keeps ratcheting up.

I use a lot of old-fashioned expressions.

We don't need giant personalities to transform companies. We need leaders who build not their own egos but the institutions they run.

We don’t ask why God chose as his prophet a stutterer with a public speaking phobia. But we should. The book of Exodus is short on explication, but its stories suggest that introversion plays yin to the yang of extroversion; that the medium is not always the message; and that people followed Moses because his words were thoughtful, not because he spoke them well.