Weapons that were designed for soldiers in war theaters don’t belong on our streets.

Winter came and the city [Chicago] turned monochrome -- black trees against gray sky above white earth. Night now fell in midafternoon, especially when the snowstorms rolled in, boundless prairie storms that set the sky close to the ground, the city lights reflected against the clouds

The incredible story of progress that is America has always been built by those who ask why, what if, and why not. Our schools must begin instilling that wonder in our children again so that their generation will unite around the next great project of our time, whether it be declaring America energy independent or launching the next great technological revolution.

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

What I remember thinking at that point, having gone through both the ups and downs of my first four years, and seeing the sea of people was, "What a remarkable country this is and how lucky am I that we live in a place where the son of a single mom, not born into any kind of fame or fortune, in a pretty remote state somehow can end up be in a position to - to make a difference."

The Greek people have gone through some very difficult times and there's still a hard road ahead, but despite those hardships, Greece has continued to be a reliable ally, has shown true compassion to fellow human beings in need. It's an example of the Greek character.

I find it amusing that those who helped to authorize and engineer the biggest foreign policy disaster in our generation are now criticizing me for making sure that we are on the right battlefield and not the wrong battlefield in the war against terrorism.