President Obama called on Americans to reflect on their freedoms while working toward a better future in an email to supporters Saturday.

"Today, all Americans have a hard-fought birthright to a freedom which enables each of us, no matter our views or background, to help set our nation's course," Obama wrote in an email through his campaign website.

Echoing remarks from his weekly radio address, Obama urged Americans to ensure the viability of the American Dream.

"As free people, we must each take the challenges and opportunities that face this nation as our own," Obama said. "As long as some Americans still must struggle, none of us can be fully content."

The president highlighted the sacrifice of troops and celebrated their sacrifices, while urging readers to involve themselves in some kind of community service.