Reid Hoffman

What makes the meaning of life is people, so you try to be good to people immediately around you and in your broader community. So a lot of my projects are about how I can affect the world in the hundreds of millions.

One of the challenges in networking is everybody thinks it's making cold calls to strangers. Actually, it's the people who already have strong trust relationships with you, who know you're dedicated, smart, a team player, who can help you.

Tribalism isn't a bad thing. If you're a Facebook user, or Twitter user or Foursquare user or LinkedIn user, those are all tribes... and they may even have sub-tribes. It's not pejorative, it's declarative.