It is a commonplace of American life that immigrants have made our country great and continue to make a very important contribution to the fabric of American life. But...under the pressures we face today, we can't afford to lose control of our borders, or to take on new financial burdens, at a time when we are not adequately providing for the jobs, the health care, and the education of our own people. Therefore, immigration must be a priority for this administration.

A significant number of petroleum geologists believe that we will reach the global maximum of petroleum extraction within this decade or that we have already reached it. Peak Oil happened in 1970 in America, when over half of our oil that we gained from the soil was exhausted ... This is very disturbing, regardless of global warming.

When I leave the office on January 20th, I will leave even more idealistic than I was the day I took the oath of office.

I'm sure I spent more time in Texas than anybody else who had run for President recently.

Through scientific discovery and technological innovation, we enlist the forces of the natural world to solve many of the uniquely human problems we face - feeding and providing energy to agrowing population, improving human health, taking responsibility for protecting the environment and the global ecosystem, and ensuring our own Nation's security. Scientific discoveries inspire and enrich us, teaching us about the mysteries of life and the nature of the world.

One of the main reasons we ought to re-elect President Obama is that he is still committed to constructive cooperation... He appointed Republican secretaries of defense, the Army and transportation. He appointed a vice president who ran against him in 2008.

Demand that your government pays more attention. It's immoral that people in Africa die like flies of diseases that no one dies of in the United States. And the more disease there is, the more political unrest there will be, leading to more Darfurs, which the U.S. will have to pay to fix.