If you are the record label who owns Lady Gaga, and you have a new artist coming up, you can say, 'Let's have the artist play just before Gaga.' Now you've exposed the huge Gaga audience to the new artist. It's similar to showing a trailer before a movie. The hit creates a hit.

Jay Z is building a range of businesses just on the strength of his brand. Lady Gaga has formed really interesting partnerships. Justin Bieber and his manager Scooter Braun are investing in a number of different companies and also promoting them in many ways.

In investing, we intuitively think we should make a number of small bets. A blockbuster strategy is the opposite. It means making fewer huge investments. But it turns out to be safer.

With so much money invested in their most promising projects, Hollywood executives will understandably do everything in their power to make their products a success in the marketplace. Therefore, the most expensive films often also get the highest marketing budgets, and are slotted into the most favorable opening weekends.

Because education is the backbone of a competitive workforce and successful economy, making it a priority is not uncommon.

That's the potential power of a single voice - a neighbor's, a teacher's, a parent's, a friend's. It can change you, make you feel as if you have a place in the world.

Education means teaching kids how to do stuff and how to think about stuff. Education is a pretty simple concept with a very clear way to measure results: you give some kind of an exam - maybe it's one of those standardized tests all kids hate, maybe it's some kind of essay, but whatever it is, it'll measure the results, and the kids will hate it.

Unlike other professions - doctor, lawyer, teacher, journalist, sales clerk, stock broker - when a cop makes a bad mistake, it could mean someone is dead. They take home mental baggage unlike anything carried in almost every other job.