The desire to change the world is a tremendous advantage as you travel down the difficult path ahead because focusing on a lofty goal is more energizing and attracts more talent than simply making a buck.

I would consider...Google Plus a push technology. It's closer to Twitter than to Facebook.

I'm a lousy predictor of the future.

Great teams are usually small-under fifty in total head count. (There are few examples of a team made up of hundreds of people who created anything revolutionary.) Big teams aren't conducive to revolutionary products because such products require a high degree of single-mindedness, unity, and unreasonable passion.

Inoculate yourself from dangerous bozos.

Organizations are successful because of good implementation,not good business plans.

If you're in enough places at enough times, then some of them are bound to be the right ones.