Effort, not ability, makes the biggest difference in achievement.

I think you have you to give people the facts [about global warming], and then you have to tell them, this is not like drinking Castor Oil. There is a, an economically exciting way for us to create a whole new generation of American jobs without costing them an enormous amount of money or forcing them to change their lifestyle.

Just try to imagine what it would be like to be 300 million years old.

What works in the real world is cooperation.

When some Republican governors asked to try new ways to put people on welfare back to work, the Obama Administration said they would only do it if they had a credible plan to increase employment by 20%. You hear that? More work. So the claim that President Obama weakened welfare reform's work requirement is just not true.

The world knows of Rosa Parks because of a single, simple act of dignity and courage that struck a lethal blow to the foundations of legal bigotry.

What we need to do is to have a sensible approach to immigration. It needs to be open. It needs to be non-dogmatic and non-bigoted. We need to be firm but reasonable in the way we deal with the problem of illegal immigration. And we need to try to get as many of our immigrants who want to do so to become citizens as quickly as possible so that the American people will all see that this is a part of the process of American history, which is a good one for our country.