Poverty, discrimination, and ignorance restrict growth.

Success is not the measure of a man but a triumph over those who choose to hold him back.

If you voluntarily quit in the face of adversity, you'll wonder about it for the rest of your life.

What we should be doing [in US] is accelerating every year our efforts to reduce our greenhouse gas emissions, have a cleaner energy future, have much more energy conservation. And this won't hurt anybody. This will create a new economy for America, if we've got the discipline to do it.

During the sole argument we had when [Chelsea] was in high school, the subject of which I don't even remember, I looked at her and said, 'As long as you're in this house, being president is my second most important job'.

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.

One way or the other, we are determined to deny Iraq the capacity to develop weapons of mass destruction and the missiles to deliver them. That is our bottom line.