You might be locked in a world not of your own making, her eyes said, but you still have a claim on how it is shaped. You still have responsibilities.

The United States is committed to a regional order rooted in international rules and norms, including freedom of navigation, and the peaceful resolution of disputes. That's the only way to ensure our common security.

I intend to protect a free and open internet, extend its reach to every classroom, and every community, and help folks build the fastest networks, so that the next generation of digital innovators and entrepreneurs have the platform to keep reshaping our world.

The Balkanization of the media means that nobody is having a single conversation with a single set of agreed-upon facts and assumptions the way you had as recently as the 90s.

Few challenges facing America and the world are more urgent than combating climate change. The science is beyond dispute and the facts are clear.

We have to be successful at the cutting-edge industries of the future like Twitter. But we also have always been a country that makes stuff.

Ask Osama bin Laden and the 22-out-of-30 top al-Qaida leaders who've been taken off the field whether I engage in appeasement. Or whoever is left out there, ask them about that.