My father left me with the feeling that I had to live for two people, and that if I did it well enough, somehow I could make up for the life he should have had. And his memory infused me, at a younger age than most, with a sense of my own mortality. The knowledge that I, too, could die young drove me both to try to drain the most out of every moment of life and to get on with the next big challenge. Even when I wasn't sure where I was going, I was always in a hurry.

If you think the President was right to open the doors of American opportunity to young immigrants brought here as children who want to go to college or serve in the military, you should vote for Barack Obama.

You are the most powerful cultural force in the world.

Without a high pain threshold, you can't be a successful President.

The world economy, the world environment, the world AIDS crisis, the world arms race: they affect us all.

Over time, the more we bring China into the world, the more the world will bring freedom to China.

If you believe in making change from the bottom up, if you believe the measure of change is how many people's lives are better, you know it's hard and some people think it's boring. Speeches like this are fun, actually doing the work is hard.