Albert Einstein, Time magazine's Most Influential Person of the Century, changed the way we perceive time. It's relative; just like everything else in life. Each day is really a new start only if one sees it that way.
Our brand new president, Barack Obama must surely feel each day weighs heavily. Each moment in his life is large. And even though a country's plans must be relatively long term, the day is what matters in the end. Each day eventually ends and is stacked up in the pile of past history, a path leading somewhere.
Each day viewed as a separate life leaves room for a change of direction, as needed, as the relativity of human existence requires. This may be the most positive way to view one's time on earth.