It is dangerously destabilizing to have half the world on the cutting edge of technology while the other half struggles on the bare edge of survival.

We're not talking about a few rooms here with delicate personal matters involved.

It is time to stop personal destruction and prying into private lives

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

I ask that all Americans demonstrate in their personal and public lives... the high ethical standards that are essential to good character and to the continued success of our Nation.

America can no longer afford to get the Nobel Prizes while our competitors get the profits.

My fellow Americans, all of us in this grand hall and everybody watching at home, when we vote in this election, we'll be deciding what kind of country we want to live in. If you want a winner-take-all, you're-on-your-own society, you should support the Republican ticket. But if you want a country of shared opportunities and shared responsibility, a we're-all-in-this-together society, you should vote for Barack Obama and Joe Biden.