Keep exploring. Keep dreaming. Keep asking why. Don’t settle for what you already know. Never stop believing in the power of your ideas, your imagination, your hard work to change the world.

The United States believes that every nation should respect international law, including in the South China Sea.

Foreign Assistance is not an end in itself. The purpose of aid must be to create the conditions where it's no longer need.

Sticking your head in the sand might make you feel safer, but it’s not going to protect you from the coming storm.

There's some bittersweet feelings about leaving the people here [in the White House]. 'Cause even though all the team you assemble, you know, you're going to stay in touch with 'em, it's not the same, you know? The band kind of breaks up.

After a decade of profligacy, the American people are tired of politicians who talk the talk but don't walk the walk when it comes to fiscal responsibility. It's easy to get up in front of the cameras and rant against exploding deficits. What's hard is actually getting deficits under control. But that's what we must do. Like families across the country, we have to take responsibility for every dollar we spend.

Sanctions alone could not stop Iran's nuclear program. But they did help bring Iran to the negotiating table.