• Introverts living under the Extrovert Ideal are like women in a man’s world, discounted because of a trait that goes to the core of who they are. (p. 4)
  • Introverts are drawn to the inner world of thought and feeling, said Jung, extroverts to the external life of people and activities. Introverts focus on the meaning they make of the events swirling around them; extroverts plunge into the events themselves. Introverts recharge their batteries by being alone; extroverts need to recharge when they don’t socialize enough. (p. 10)
  • Introverts often work more slowly and deliberately. They like to focus on one task at a time and can have mighty powers of concentration. They’re relatively immune to the lures of wealth and fame. (p. 11)
  • Introverts, in contrast, may have strong social skills and enjoy parties and business meetings, but after a while wish they were home in their pajamas. They prefer to devote their social energies to close friends, colleagues, and family. They listen more than they talk, think before they speak, and often feel as if they express themselves better in writing than in conversation. They tend to dislike conflict. Many have a horror of small talk, but enjoy deep discussions. (p. 11)
  • Shyness is inherently painful; introversion is not. One reason that people confuse the two concepts is that they sometimes overlap. (p. 12)
  • Many introverts are also “highly sensitive”. (p. 14)
  • You may be quicker than others to feel sickened by violence and ugliness, and you likely have a very strong conscience. (p. 14)
  • When you were a child you were probably called “shy,” and to this day feel nervous when you’re being evaluated. (p. 14)
  • He has trouble elbowing his way into class discussions; in some classes he barely speaks at all. He prefers to contribute only when he believes he has something insightful to add, or honest-to-God disagrees with someone. This sounds reasonable, but Don feels as if he should be more comfortable talking just so he can fill up his share of available airtime. (p. 46)
  • The more a person talks, the more other group members direct their attention to him, which means that he becomes increasingly powerful as a meeting goes on. It also helps to speak fast; we rate quick talkers as more capable and appealing than slow talkers. All of this would be fine if more talking were correlated with greater insight, but research suggests that there’s no such link. (p. 51)
  • The “Bus to Abilene” anecdote reveals our tendency to follow those who initiate action—any action. We are similarly inclined to empower dynamic speakers. (p. 52)
  • The lesson, says Collins, is clear. We don’t need giant personalities to transform companies. We need leaders who build not their own egos but the institutions they run. (p. 55)
  • His hypothesis was that extroverted leaders enhance group performance when employees are passive, but that introverted leaders are more effective with proactive employees. (p. 56)
  • One of the most interesting findings, echoed by later studies, was that the more creative people tended to be socially poised introverts. They were interpersonally skilled but “not of an especially sociable or participative temperament.” They described themselves as independent and individualistic. As teens, many had been shy and solitary. (p. 74)
  • Introverts prefer to work independently, and solitude can be a catalyst to innovation. (p. 74)
  • The New Groupthink elevates teamwork above all else. It insists that creativity and intellectual achievement come from a gregarious place. (p. 75)
  • We failed to realize that what makes sense for the asynchronous, relatively anonymous interactions of the Internet might not work as well inside the face-to-face, politically charged, acoustically noisy confines of an open-plan office. Instead of distinguishing between online and in-person interaction, we used the lessons of one to inform our thinking about the other. (p. 79)
  • What’s so magical about solitude? In many fields, Ericsson told me, it’s only when you’re alone that you can engage in Deliberate Practice, which he has identified as the key to exceptional achievement. (p. 81)
  • Deliberate Practice is best conducted alone for several reasons. It takes intense concentration, and other people can be distracting. It requires deep motivation, often self-generated. But most important, it involves working on the task that’s most challenging to you personally. (p. 81)
  • Open-plan offices have been found to reduce productivity and impair memory. (p. 84)
  • 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. (p. 85)
  • Group brainstorming doesn’t actually work. (p. 88)
  • “Evidence from science suggests that business people must be insane to use brainstorming groups”. (p. 88)
  • The “evidence from science suggests that business people must be insane to use brainstorming groups,” writes the organizational psychologist Adrian Furnham. “If you have talented and motivated people, they should be encouraged to work alone when creativity or efficiency is the highest priority.” (p. 88)
  • Participants in brainstorming sessions usually believe that their group performed much better than it actually did, which points to a valuable reason for their continued popularity—group brainstorming makes people feel attached. A worthy goal, so long as we understand that social glue, as opposed to creativity, is the principal benefit. (p. 89)
  • Peer pressure, in other words, is not only unpleasant, but can actually change your view of a problem. (p. 92)
  • The most effective teams are composed of a healthy mix of introverts and extroverts, studies show, and so are many leadership structures. (p. 93)
  • We also need to create settings in which people are free to circulate in a shifting kaleidoscope of interactions, and to disappear into their private workspaces when they want to focus or simply be alone. (p. 93)
  • Many of the children turned out exactly as Kagan had expected. The high-reactive infants, the 20 percent who’d hollered at the mobiles bobbing above their heads, were more likely to have developed serious, careful personalities. The low-reactive infants—the quiet ones—were more likely to have become relaxed and confident types. High and low reactivity tended to correspond, in other words, to introversion and extroversion. (p. 100)
  • Kagan hypothesized that infants born with an especially excitable amygdala would wiggle and howl when shown unfamiliar objects—and grow up to be children who were more likely to feel vigilant when meeting new people. (p. 102)
  • None of these studies is perfect, but the results have consistently suggested that introversion and extroversion, like other major personality traits such as agreeableness and conscientiousness, are about 40 to 50 percent heritable. (p. 105)
  • In fact, public speaking anxiety may be primal and quintessentially human, not limited to those of us born with a high-reactive nervous system. One theory, based on the writings of the sociobiologist E. O. Wilson, holds that when our ancestors lived on the savannah, being watched intently meant only one thing: a wild animal was stalking us. And when we think we’re about to be eaten, do we stand tall and hold forth confidently? No. We run. (p. 107)
  • Studies do show that introverts are significantly more likely than extroverts to fear public speaking. (p. 108)
  • The footprint of a high- or low-reactive temperament never disappeared in adulthood. Some high-reactives grew into socially fluid teenagers who were not outwardly rattled by novelty, but they never shed their genetic inheritance. (p. 117)
  • 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. (p. 117)
  • Once you understand introversion and extroversion as preferences for certain levels of stimulation, you can begin consciously trying to situate yourself in environments favorable to your own personality—neither overstimulating nor understimulating, neither boring nor anxiety-making. (p. 124)
  • Often used as a way to conquer phobias, desensitization involves exposing yourself (and your amygdala) to the thing you’re afraid of over and over again, in manageable doses. This is very different from the well-meaning but unhelpful advice that you should just jump in at the deep end and try to swim—an approach that might work, but more likely will produce panic, further encoding in your brain a cycle of dread, fear, and shame. (p. 126)
  • Sometimes speakers need to talk about subjects that don’t interest them much, especially at work. I believe this is harder for introverts, who have trouble projecting artificial enthusiasm. (p. 129)
  • For example, highly sensitive people tend to be keen observers who look before they leap. They arrange their lives in ways that limit surprises. They’re often sensitive to sights, sounds, smells, pain, coffee. They have difficulty when being observed (at work, say, or performing at a music recital) or judged for general worthiness (dating, job interviews). (p. 136)
  • The highly sensitive tend to be philosophical or spiritual in their orientation, rather than materialistic or hedonistic. They dislike small talk. They often describe themselves as creative or intuitive (just as Aron’s husband had described her). They dream vividly, and can often recall their dreams the next day. They love music, nature, art, physical beauty. They feel exceptionally strong emotions—sometimes acute bouts of joy, but also sorrow, melancholy, and fear. (p. 136)
  • Highly sensitive people also process information about their environments—both physical and emotional—unusually deeply. They tend to notice subtleties that others miss—another person’s shift in mood, say, or a lightbulb burning a touch too brightly. (p. 136)
  • The other thing Aron found about sensitive people is that sometimes they’re highly empathic. It’s as if they have thinner boundaries separating them from other people’s emotions and from the tragedies and cruelties of the world. (p. 137)
  • The other thing Aron found about sensitive people is that sometimes they’re highly empathic. It’s as if they have thinner boundaries separating them from other people’s emotions and from the tragedies and cruelties of the world. They tend to have unusually strong consciences. They avoid violent movies and TV shows; they’re acutely aware of the consequences of a lapse in their own behavior. (p. 137)
  • But the same receptivity to experience that can make life difficult for the highly sensitive also builds their consciences. (p. 141)
  • High-reactive introverts sweat more; low-reactive extroverts sweat less. (p. 142)
  • Human extroverts have more sex partners than introverts do—a boon to any species wanting to reproduce itself—but they commit more adultery and divorce more frequently, which is not a good thing for the children of all those couplings. Extroverts exercise more, but introverts suffer fewer accidents and traumatic injuries. Extroverts enjoy wider networks of social support, but commit more crimes. (p. 148)
  • Suppose a herd of antelope … has a few members who are constantly stopping their grazing to use their keen senses to watch for predators,” she writes. “Herds with such sensitive, watchful individuals would survive better, and so continue to breed, and so continue to have some sensitive individuals born in the group.” (p. 148)
  • If you’re a sensitive sort, then you may be in the habit of pretending to be more of a politician and less cautious or single-mindedly focused than you actually are. But in this chapter I’m asking you to rethink this view. Without people like you, we will, quite literally, drown. (p. 151)
  • In most settings, people use small talk as a way of relaxing into a new relationship, and only once they’re comfortable do they connect more seriously. Sensitive people seem to do the reverse. They “enjoy small talk only after they’ve gone deep”. (p. 152)
  • Just as the amygdala of a high-reactive person is more sensitive than average to novelty, so do extroverts seem to be more susceptible than introverts to the reward-seeking cravings of the old brain. In fact, some scientists are starting to explore the idea that reward-sensitivity is not only an interesting feature of extroversion; it is what makes an extrovert an extrovert. (p. 159)
  • Extroverts seem to get an extra buzz from the pursuit and attainment of their goals. (p. 160)
  • This blindness to danger may explain why extroverts are more likely than introverts to be killed while driving, be hospitalized as a result of accident or injury, smoke, have risky sex, participate in high-risk sports, have affairs, and remarry. It also helps explain why extroverts are more prone than introverts to overconfidence—defined as greater confidence unmatched by greater ability. (p. 161)
  • Introverts also seem to be better than extroverts at delaying gratification, a crucial life skill associated with everything from higher SAT scores and income to lower body mass index. (p. 163)
  • Introverts seem to be specifically wired or trained so when they catch themselves getting excited and focused on a goal, their vigilance increases.” (p. 167)
  • Extroverts are more likely to take a quick-and-dirty approach to problem-solving, trading accuracy for speed, making increasing numbers of mistakes as they go, and abandoning ship altogether when the problem seems too difficult or frustrating. Introverts think before they act, digest information thoroughly, stay on task longer, give up less easily, and work more accurately. (p. 168)
  • It’s as if extroverts are seeing “what is” while their introverted peers are asking “what if“. (p. 168)
  • The point is that we tend to overvalue buzz and discount the risks of reward-sensitivity: we need to find a balance between action and reflection. (p. 169)
  • So stay true to your own nature. If you like to do things in a slow and steady way, don’t let others make you feel as if you have to race. If you enjoy depth, don’t force yourself to seek breadth. If you prefer single-tasking to multi tasking, stick to your guns. Being relatively unmoved by rewards gives you the incalculable power to go your own way. It’s up to you to use that independence to good effect. (p. 173)
  • Introverts need to trust their gut and share their ideas as powerfully as they can. This does not mean aping extroverts; ideas can be shared quietly, they can be communicated in writing, they can be packaged into highly produced lectures, they can be advanced by allies. (p. 173)
  • Conviction is conviction, the kids from Cupertino taught me, at whatever decibel level it’s expressed. (p. 202)
  • Many people, especially those in leadership roles, engage in a certain level of pretend-extroversion. (p. 210)
  • First, think back to what you loved to do when you were a child. How did you answer the question of what you wanted to be when you grew up? (p. 218)
  • Second, pay attention to the work you gravitate to. (p. 218)
  • Finally, pay attention to what you envy. Jealousy is an ugly emotion, but it tells the truth. You mostly envy those who have what you desire. (p. 218)
  • Your degree of extroversion seems to influence how many friends you have, in other words, but not how good a friend you are. (p. 227)
  • They focused on the so-called Big Five traits: Introversion-Extroversion; Agreeableness; Openness to Experience; Conscientiousness; and Emotional Stability. (Many personality psychologists believe that human personality can be boiled down to these five characteristics.) (p. 227)
  • We all empathize with a sleep-deprived mate who comes home from work too tired to talk, but it’s harder to grasp that social overstimulation can be just as exhausting. It’s also hard for introverts to understand just how hurtful their silence can be. (p. 228)
  • Just as men and women often have different ways of resolving conflict, so do introverts and extroverts; studies suggest that the former tend to be conflict-avoiders, while the latter are “confrontive copers,” at ease with an up-front, even argumentative style of disagreement. (p. 230)
  • These findings suggest something very important: introverts like people they meet in friendly contexts; extroverts prefer those they compete with. (p. 231)
  • But the catharsis hypothesis is a myth—a plausible one, an elegant one, but a myth nonetheless. Scores of studies have shown that venting doesn’t soothe anger; it fuels it. (p. 233)
  • Extroverts are sociable because their brains are good at handling competing demands on their attention—which is just what dinner-party conversation involves. (p. 237)
  • Introverts often feel repelled by social events that force them to attend to many people at once. (p. 237)
  • Extroverts need to know that introverts—who often seem to disdain the superficial—may be only too happy to be tugged along to a more lighthearted place; and introverts, who sometimes feel as if their propensity for problem talk makes them a drag, should know that they make it safe for others to get serious. (p. 239)
  • We often marvel at how introverted, geeky kids “blossom” into secure and happy adults. We liken it to a metamorphosis. However, maybe it’s not the children who change but their environments. As adults, they get to select the careers, spouses, and social circles that suit them. They don’t have to live in whatever culture they’re plunked into. (p. 253)
  • Relationships make everyone happier, introverts included, but think quality over quantity. (p. 264)
  • Cherish your nearest and dearest. (p. 264)
  • Use your natural powers—of persistence, concentration, insight, and sensitivity—to do work you love and work that matters. Solve problems, make art, think deeply. (p. 264)
  • Figure out what you are meant to contribute to the world and make sure you contribute it. (p. 264)
  • Carve out restorative niches. (p. 265)
  • Spend your free time the way you like, not the way you think you’re supposed to. Stay home on New Year’s Eve if that’s what makes you happy. (p. 265)
  • Face-to-face contact is important because it builds trust, but group dynamics contain unavoidable impediments to creative thinking. (p. 266)
  • Don’t mistake assertiveness or eloquence for good ideas. (p. 266)