The thing I know for sure is that at the end of my life, what I'm going to remember is the love I felt for my family and my friends, and whatever good I did for other people.

If we're going to prevent large parts of this Earth from becoming not only inhospitable but uninhabitable in our lifetimes, we're going to have to keep some fossil fuels in the ground rather than burn them and release more dangerous pollution into the sky.

Anybody who gets into bed and turns out the lights the first night in the White House probably feels a little bit of a start, where you say, "Goodness ... "

It is now our generation's task to carry on what those pioneers began. For our journey is not complete until our wives, our mothers and daughters can earn a living equal to their efforts. Our journey is not complete until our gay brothers and sisters are treated like anyone else under the law - for if we are truly created equal, then surely the love we commit to one another must be equal as well.

In ancient times and in our times, Muslim communities have been at the forefront of innovation and education.

Stamina. There is a greater physical element to this job than you would think, just being able to grind it out. And I think your ability to not just mentally and emotionally, but physically be able to say, "We got this. We're going to be OK."

Mr Speaker, Mr Vice President, members of Congress, distinguished guests, and fellow Americans, last month I went to Andrews Air Force Base and welcomed home some of our last troops to serve in Iraq. Together, we offered a final, proud salute to the colors under which more than a million of our fellow citizens fought, and several thousand gave their lives. We gather tonight knowing that this generation of heroes has made the United States safer and more respected around the world.