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

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?

That’s just silly. Closing a global business in reaction to single-issue national politics is foolish.

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

Successful businesses measure and count things. I think that's a safe assumption on top of which we can drop the following hypothesis: unsuccessful business either measure nothing, the wrong things, too many things, or finally, they measure the right things but they don't communicate the measurements efficiently.

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.