Twitter is about the democratization of access to a platform that allows anyone in the world - who has a mobile phone and access to SMS - to have a voice and be heard.

Users want relevant content as advertising. As a result, the distinction between advertising and content is going away. All that matters to a user is relevancy.

More than 80% of our revenue comes from people viewing ads on mobile devices. Inside Twitter, we talk and think mobile first.

I will never forget the asymmetry of your eyes. it is transformative symmetry. it is the best symmetry. It is the symmetry that is beauty.

Great wealth, like a crowd at a concert, Gathers and melts.

We need to consciously remember that we have an unprecedented responsibility to protect the planet, because without it we have nowhere else to live.

I've always been petrified of working for a boss who I didn't like but who I was in fear of, because I wanted my salary.

I only take risks in couture, but I don't take risks in athleticism.

I've never been overseas. I can only imagine what that's like.

My father was an innovator. He's the first person who sang and set Rumi's poetry into music 35 years, 40 years ago.

Opportunities are always everywhere, learn to see and create them.

There will be people who hate everything you do. And some people will really love it. But that's not really different from the people who really hate it.

If water stands motionless in a pool it grows stale and muddy, but when it moves and flows it becomes clear: so, too, man in his wanderings.