Believe that if you make courageous choices, and bet on yourself, then you will have an impact.

The way you build trust with your people is by being forthright and clear with them from day one. You may think people are fooled when you tell them what they want to hear. They are not fooled.

Authenticity is absolutely the key to a great tweet.

Believe that if you make courageous choices and bet on yourself and put yourself out there, that you will have an impact, as a result of what you do. And you don't need to know now what that would be or how will it happen because no one ever does.

People have Plato's form in their mind of what a leader is, or what a C.E.O. is, and it is a bunch of elements that I really don't conform to at all. I've given this a lot of thought, and I came to the conclusion that I don't care.

Twitter brings you closer. I mean, we see this over and over again from our users. It brings them closer to the action. It brings them closer to their heroes.

The key is to just get on the bike, and the key to getting on the bike… is to stop thinking about ‘there are a bunch of reasons I might fall off’ and just hop on and peddle the damned thing. You can pick up a map, a tire pump, and better footwear along the way.