"The sooner we get started with alternative energy sources and recognize that fossil fuels makes us less secure as a nation, and more dangerous as a planet, the better off we'll be"

"Wonder if there is life on another planet? Let's suppose there is. Suppose further, that only one star in a trillion has a planet that could support life. If that were the case, then there would be at least 100 million planets that harbored life"

"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"

"It suddenly struck me that that tiny pea, pretty and blue, was the Earth. I put up my thumb and shut one eye, and my thumb blotted out the planet Earth. I didn't feel like a giant. I felt very, very small"

"Here men from the planet Earth first set foot upon the Moon. July 1969 AD. We came in peace for all mankind"

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

"How inappropriate to call this planet Earth when it is quite clearly Ocean"

"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"

"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"