The best way to not feel hopeless is to get up and do something.

It was basic research in the photoelectric field-in the photoelectric effect that would one day lead to solar panels. It was basic research in physics that would eventually produce the CAT scan. The calculations of today's GPS satellites are based on the equations that Einstein put to paper more than a century ago.

The borders of Israel and Palestine should be based on the 1967 lines with mutually agreed swaps, so that secure and recognized borders are established for both states.

I don't want my generals or my defense secretary or my national-security team to ever feel deploying weapons to kill people as routine or abstract, even if the targets are bad people.

When the economy is still struggling, putting people back to work, finding ways to spur economic activity, ultimately can help to reduce the structural deficits and debts that countries experience.

America, now is not the time for small plans.

The profound mistake of Reverend Wright's sermons is not that he spoke about racism in our society. It's that he spoke as if our society was static; as if no progress has been made; as if this country - a country that has made it possible for one of his own members to run for the highest office in the land and build a coalition of white and black; Latino and Asian, rich and poor, young and old - is still irrevocably bound to a tragic past.