Steve Jobs has a saying that A players hire A players; B players hire C players; and C players hire D players. It doesn't take long to get to Z players. This trickle-down effect causes bozo explosions in companies.

Do you know what the difference is between PR and advertising? Advertising is when you say how great you are. PR is when other people say how great you are. PR is better.

The first 90 percent of a revolution is creating the product or service; the second 90 percent is evangelizing it. At the beginning of a revolution, you need evangelists, not sales, because leverage spreads news.

Defy the crowd. The crowd isn’t always wise. It can also lead you down a path of silliness, sub-optimal choices, and downright destruction. Enchantment is as necessary for people to diverge from a crowd as it is to get people to join one.

For startups, SM is now crucial: it has never been cheaper and easier to reach one's customers. Entrepreneurs should thank God for Twitter, Facebook.

If you're an entrepreneur and you think that the president makes a difference to your business, you should stay at your current job.

When you give people too many choices it makes them hesitate and not buy stuff.