"The high prices also highlight the fact that the U.S. is too heavily dependent on fossil fuels that we import from unstable parts of the world. To protect our national security, we must become more energy secure"

"Unless we have a well-educated people, we're vulnerable on our national security"

"First, I want to pay tribute to Diana myself. She was an exceptional and gifted human being. In good times and bad, she never lost her capacity to smile and laugh, nor to inspire others with her warmth and kindness. I admired and respected her - for her energy and commitment to others, and especially for her devotion to her two boys"

"Thirty percent of the Nation's energy comes off the gulf coast"

"Distrust and caution are the parents of security"

"The use of solar energy has not been opened up because the oil industry does not own the sun"

"In the long course of history, having people who understand your thought is much greater security than another submarine"

"Don't be afraid to fail. Don't waste energy trying to cover up failure. Learn from your failures and go on to the next challenge. It's OK to fail. If you're not failing, you're not growing"

"Life begets life. Energy creates energy. It is by spending oneself that one becomes rich"

"We cannot continue to rely only on our military in order to achieve the national security objectives that we've set. We've got to have a civilian national security force that's just as powerful, just as strong, just as well-funded"

"Oh, the miraculous energy that flows between two people who care enough to get beyond surfaces and games, who are willing to take the risks of being totally open, of listening, of responding with the whole heart. How much we can do for each other"