Malcolm Gladwell said this quote

Those three things - autonomy, complexity, and a connection between effort and reward - are, most people will agree, the three qualities that work has to have if it is to be satisfying.

~ Malcolm Gladwell

Hard work is only a prison sentence when you lack motivation

~ Malcolm Gladwell

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. It makes a difference where and when we grew up. The culture we belong to and the legacies passed down by our forebears shape the patterns of our achievements in ways we cannot begin to imagine. It's not enough to ask what successful people are like, in other words. It is only by asking where they are from that we can unravel the logic behind who succeeds and who doesn't.

~ Malcolm Gladwell

The striking thing about Ericsson’s study is that he and his colleagues couldn’t find any ‘naturals,’ musicians who floated effortlessly to the top while practicing a fraction of the time their peers did. Nor could they find any ‘grinds,’ people who worked harder than everyone else, yet just didn’t have what it takes to break the top ranks. 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 idea that excellence at a complex task requires a critical minimum level of practice surfaces again and again in studies of excellence. In fact, researchers have settled on what they believe is the magic number for true expertise: ten thousand hours.

~ Malcolm Gladwell