• In Outliers, I want to convince you that these kinds of personal explanations of success don’t work. People don’t rise from nothing. We do owe something to parentage and patronage. The people who stand before kings may look like they did it all by themselves. But in fact they are invariably the beneficiaries of hidden advantages and extraordinary opportunities and cultural legacies that allow them to learn and work hard and make sense of the world in ways others cannot.

• Success is the result of what sociologists like to call “accumulative advantage.”

• Working in collaboration with a small group of programmers, Joy took on the task of rewriting UNIX, which was a software system developed by AT&T for mainframe computers.

• For almost a generation, psychologists around the world have been engaged in a spirited debate over a question that most of us would consider to have been settled years ago. The question is this: is there such a thing as innate talent? The obvious answer is yes.

• Achievement is talent plus preparation. The problem with this view is that the closer psychologists look at the careers of the gifted, the smaller the role innate talent seems to play and the bigger the role preparation seems to play.

• Their research suggests that once a musician has enough ability to get into a top music school, the thing that distinguishes one performer from another is how hard he or she works. That’s it. And what’s more, the people at the very top don’t work just harder or even much harder than everyone else. They work much, much harder.

• “The emerging picture from such studies is that ten thousand hours of practice is required to achieve the level of mastery associated with being a world-class expert—in anything,”

• But, writes the psychologist Michael Howe in his book Genius Explained, by the standards of mature composers, Mozart’s early works are not outstanding. The earliest pieces were all probably written down by his father, and perhaps improved in the process. Many of Wolfgang’s childhood compositions, such as the first seven of his concertos for piano and orchestra, are largely arrangements of works by other composers. Of those concertos that only contain music original to Mozart, the earliest that is now regarded as a masterwork (No. 9, K. 271) was not composed until he was twenty-one: by that time Mozart had already been composing concertos for ten years. The music critic Harold Schonberg goes further: Mozart, he argues, actually “developed late,” since he didn’t produce his greatest work until he had been composing for more than twenty years.

• Practice isn’t the thing you do once you’re good. It’s the thing you do that makes you good. The other interesting thing about that ten thousand hours, of course, is that ten thousand hours is an enormous amount of time. It’s all but impossible to reach that number all by yourself by the time you’re a young adult. You have to have parents who encourage and support you.

• Opportunity number one was that Gates got sent to Lakeside. How many high schools in the world had access to a time-sharing terminal in 1968? Opportunity number two was that the mothers of Lakeside had enough money to pay for the school’s computer fees. Number three was that, when that money ran out, one of the parents happened to work at C-Cubed, which happened to need someone to check its code on the weekends, and which also happened not to care if weekends turned into weeknights. Number four was that Gates just happened to find out about ISI, and ISI just happened to need someone to work on its payroll software. Number five was that Gates happened to live within walking distance of the University of Washington. Number six was that the university happened to have free computer time between three and six in the morning. Number seven was that TRW happened to call Bud Pembroke. Number eight was that the best programmers Pembroke knew for that particular problem happened to be two high school kids. And number nine was that Lakeside was willing to let those kids spend their spring term miles away, writing code.

• All the outliers we’ve looked at so far were the beneficiaries of some kind of unusual opportunity.

• Lareau calls the middle-class parenting style “concerted cultivation.” It’s an attempt to actively “foster and assess a child’s talents, opinions and skills.” Poor parents tend to follow, by contrast, a strategy of “accomplishment of natural growth.” They see as their responsibility to care for their children but to let them grow and develop on their own.

• “The beginning is hard,” he went on. “By the end of the day they’re restless. Part of it is endurance, part of it is motivation. Part of it is incentives and rewards and fun stuff. Part of it is good old-fashioned discipline. You throw all of that into the stew. We talk a lot here about grit and self-control. The kids know what those words mean.”

• Outliers are those who have been given opportunities—and who have had the strength and presence of mind to seize them.