Visionaries are limited by their visions.

Anyone who knows the marketing world knows that ideas come and go, and people latch onto things and think of them as a kind of solution.

Look at the world around you. It may seem like an immovable, implacable place. It is not. With the slightest push - in just the right place - it can be tipped.

I would say first of all, anyone who wants to challenge the status quo always gets that response. Ninety percent of the time, that's just bull. That's just the way in which people choose to prop up their own privilege or their own particular position. So mostly I shrug it off.

The face is not a secondary billboard for our internal feelings. It is an equal partner in the emotional process.

The lesson here is very simple. But it is striking how often it is overlooked. We are so caught in the myths of the best and the brightest and the self-made that we think outliers spring naturally from the earth. We look at the young Bill Gates and marvel that our world allowed that thirteen-year-old to become a fabulously successful entrepreneur. But that's the wrong lesson. Our world only allowed one thirteen-year-old unlimited access to a time sharing terminal in 1968. If a million teenagers had been given the same opportunity, how many more Microsofts would we have today?

In fact, researchers have settled on what they believe is the magic number for true expertise: ten thousand hours.