It depends upon what the meaning of the word 'is' is.

I've been talking about income inequality in America for twenty years, and when I was president, people didn't pay much attention to it, probably because wages were going up. But I don't think I've given a single solitary speech since I left office that I hadn't talked about it. It's a problem around the world and within the United States. So these people have put that on the agenda.

The problem with ideology is if you got an ideology, you already got your mind made up, you know all the answers, and that makes evidence irrelevant and argument a waste of time, so you tend to govern by assertion and attack. The problem with that is that discourages thinking and gives you bad results.

I don't think the Republicans can damage my character

We are here to celebrate the completion of the first survey of the entire human genome. Without a doubt, this is the most important, most wondrous map ever produced by human kind.

I believe we can do much more to adapt to the structural changes in the global economy, get high-end manufacturing back here, set up clusters of economic activity where you have, among other things, continuous retraining of people well into their middle years so they never become irrelevant to the current job market.

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