I think the idea of moving to a cleaner energy future and doing more energy efficiency makes smart sense.

Citizen service is the very American idea that we meet our challenges not as isolated individuals but as members of a true community, with all of us working together. Our mission is nothing less than to spark a renewed sense of obligation, a new sense of duty, a new season of service.

I don't think I would have become President if it were not for my school music program.

We must say no to illegal immigration so we can continue to say yes to legal immigration.

The United States should.... avoid unilateral export controls and controls on technology widely available in world markets. Unilateral controls penalize U.S. exporters without advancing U.S. national security or foreign policy interests.

Demand that your government pays more attention. It's immoral that people in Africa die like flies of diseases that no one dies of in the United States. And the more disease there is, the more political unrest there will be, leading to more Darfurs, which the U.S. will have to pay to fix.

Two-thirds of the Iranian people would like to be reconciled with the West. They don't like the fanaticism of the governing religious council. It's the only place in the world where the last six elections have been won by the more progressive candidate, two for president, two for the mayors, two for the parliament. So most people there are sympathetic to the world we Americans want to build, whether we're Republicans or Democrats. On the other hand, almost everybody there wants them to have nuclear power. They see it as a status symbol, and a sense of their own security.