Don't always worry about what your next line is supposed to be. There is no script. Live your life. Be in this moment.

The beauty of Twitter is that more and more people are flocking to it because it's shrinking their world.

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.

If there's ever an example of the importance of making bold bets and focusing on what you love, it's Twitter.

When you are doing what you love to do, you become resilient.

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.

What is the thing that matters most to making progress right now?