Quiet: The Power of Introverts in a World That Can't Stop Talking

The U.S Army has a name for a similar phenomenon: "the Bus to Abilene." "Any army officer can tell you what that means," Colonel (Ret.) Stephen J. Gerras, a professor of behavioral sciences at the U.S. Army War College, told Yale Alumni Magazine in 2008. "It's about a family sitting on a porch in Texas on a hot summer day, and somebody says, 'I'm bored. Why don't we go to Abilene?' When they get to Abilene, somebody says, 'You know, I didn't really want to go.' And the next person says, 'I didn't want to go—I thought you wanted to go,' and so on. Whenever you're in an army group and somebody says, 'I think we're all getting on the bus to Abilene here,' that is a red flag. You can stop a conversation with it. It is a very powerful artifact of our culture."

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

Grant had a theory about which kinds of circumstances would call for introverted leadership. His hypothesis was that extroverted leaders enhance group performance when employees are passive, but that introverted leaders are more effective with proactive employees.

Grant says it makes sense that introverts are uniquely good at leading initiative-takers. Because of their inclination to listen to others and lack of interest in dominating social situations, introverts are more likely to hear and implement suggestions. Having benefited from the talents of their followers, they are then likely to motivate them to be even more proactive. Introverted leaders create a virtuous circle of proactivity, in other words.

Extroverts, on the other hand, can be so intent on putting their own stamp on events that they risk losing others' good ideas along the way and allowing workers to lapse into passivity.

But with the natural ability to inspire, extroverted leaders are better at getting results from more passive workers.

Open-plan offices have been found to reduce productivity and impair memory. They're associated with high staff turnover. They make people sick, hostile, unmotivated, and insecure. Open-plan workers are more likely to suffer from high blood pressure and elevated stress levels and to get the flu; they argue more with their colleagues; they worry about coworkers eavesdropping on their phone calls and spying on their computer screens. They have fewer personal and confidential conversations with colleagues. They're often subject to loud and uncontrollable noise, which raises heart rates; releases cortisol, the body's fight-or-flight "stress" hormone; and makes people socially distant, quick to anger, aggression, and slow to help others.

Indeed, excessive stimulation seems to impede learning: a recent study found that people learn better after a quiet stroll through the woods than after a noisy walk down a city street. Another study, of 38,000 knowledge workers across different sectors, found that the simple act of being interrupted is one of the biggest barriers to productivity. Even multitasking, that prized feat of modern-day office warriors, turns out to be a myth.

Schwartz's research suggests something important: we can stretch our personalities, but only up to a point. Our inborn temperaments influence us, regardless of the lives we lead. A sizable part of who we are is ordained by our genes, by our brains, by our nervous systems. And yet the elasticity that Schwartz found in some of the high-reactive teens also suggests the converse: we have free will and can use it to shape our personalities.

We might call this the "rubber band theory" of personality. We are like rubber bands at rest. We are elastic and can stretch ourselves, but only so much.

But what [my grandfather] loved to to best was to read. In his small apartment, where as a widower he'd lived alone for decades, all the urniture had yielded its original function to serve as a surface for piles of books: gold-leafed Hebrew texts jumbled together with Margaret Atwood and Milan Kumdera.